Create the following classes The Item Class 1. Write an Item class with fields: title (String), type (String), totalPlayingTime (int) 2. Provide appropriate setters and getters. 3. Add toString method. The Music Class 1. Write a Music class with fields: artist (String), NumberOfTracks(int) 2. Extend the Music class from Item class. 3. Provide appropriate setters and getters. 4. Add toString method. The Video Class 1. Write a Video class with fields: director (String) 2. Extend the Video class from Item class. 3. Provide appropriate setters and getters. The DataBase Class 1. Write a DataBase class that has an array of Items (array list). 2. Write a method to add an Item to the array. 3. Write a method to print all the elements of the array. 4. Write methods that return the number of all items. 5. Write methods that return the number of Music items. 6. Write methods that return the number of Video items. 7. Write methods that return the number of items that are not Music nor Video. The Test Class You need to provide and implement the following functionalities: 1. Create 2 objects of Music. 2. Create 2 objects of Video. 3. Create 3 objects of Item. 4. Add the Objects to DataBase. 5. Display all the records stored in the Database. 6. Display the number of: a. All items. b. Music items. c. Video items. d. Items that are not Music nor Video.
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Answer 1

The classes mentioned are designed to model items, music, videos, and a database for storing and managing these objects. The Item class represents a generic item with title, type, and total playing time. The Music class extends the Item class and adds fields for artist and number of tracks. Similarly, the Video class extends the Item class and includes a director field. The DataBase class maintains an array list of Item objects and provides methods for adding items, printing all elements, and counting different types of items.

The Item class is a basic class with three fields: title, type, and totalPlayingTime. It has appropriate setters and getters for each field, allowing access and modification of these attributes. The toString method is overridden to provide a string representation of an Item object.

The Music class extends the Item class and adds two additional fields: artist and NumberOfTracks. It inherits the fields and methods from the Item class and provides its own setters and getters. The toString method is also overridden to include the new fields when converting a Music object to a string representation.

The Video class extends the Item class and adds a director field. It follows a similar structure to the Music class, inheriting fields and methods from the Item class and providing additional getters and setters. The toString method is overridden to include the director field when converting a Video object to a string.

The DataBase class contains an array list of Item objects, allowing the storage of multiple items. It has a method to add an Item to the array list and another method to print all elements stored in the array. Additional methods are implemented to count the total number of items, the number of Music items, the number of Video items, and the number of items that are neither Music nor Video.

In the Test class, objects of Music, Video, and Item are created and added to the DataBase. The records stored in the database are then displayed using the print method. Finally, the numbers of all items, music items, video items, and items that are not music nor video are displayed by calling the respective methods of the DataBase class.

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Related Questions

RISC-V
I want the code machine for this code in binary then convert
to hex
addi x7,x0,-3
sub x8,x0,x7
here:
beq x7,x8,here
sw x8,10(x7)

Answers

The machine code for the given RISC-V code is 00100000000001111000000000000011 (binary) and 201FFFE3 (hexadecimal) for "addi x7,x0,-3", and the machine code is 0110011000001000001000000010011 (binary) and 007303B3 (hexadecimal) for "sub x8,x0,x7".

What is the machine code and hexadecimal representation of the given RISC-V code?

The given code is written in RISC-V assembly language. To convert it to machine code, we need to follow the instruction encoding format of RISC-V.

addi x7,x0,-3:

The binary representation of this instruction is:

0010000 00000 00111 111111111111

sub x8,x0,x7:

The binary representation of this instruction is:

0110011 00000 01000 00111 000 10011

beq x7,x8,here:

The binary representation of this instruction is:

1100011 01000 00111 000 00000 0000010

sw x8,10(x7):

The binary representation of this instruction is:

0100011 00111 01000 010 00010 0000010

To convert the binary representation to hexadecimal, we group the binary bits into sets of four and convert each set to its corresponding hexadecimal value.

The hexadecimal representation of the given code is:

addi x7,x0,-3: 201FFFE3

sub x8,x0,x7: 007303B3

beq x7,x8,here: 646383E2

sw x8,10(x7): A0C48423

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I was wondering if someone could help me make working code to
help satisfy these requirements.
Thanks!!
2. Create a public Country class in Java. 3. Save it as a .java file. 4. Create two constructors: A. One is a no-parameter constructor (do not initialize the variables here - just keep empty) B. One u

Answers

Here's the working code that satisfies the mentioned requirements for creating a public Country class in Java with two constructors (one with no parameters and the other with a parameterized constructor):```

public class Country {private String name;

private int population;public Country() {}

public Country(String name, int population) {this.name = name;

this.population = population;}

public String getName() {return name;}

public void setName(String name) {this.name = name;}

public int getPopulation() {return population;}

public void setPopulation(int population) {this.population = population;}}``

`The above code consists of a public Country class with two constructors. One is a no-parameter constructor (that does not initialize the variables, just keep them empty) and the other one is a parameterized constructor that accepts two arguments name and population and initializes the variables with the values passed in the arguments.The class contains private variables name and population, and the corresponding getter and setter methods. You can change the variables' names and the method names according to your requirements.After creating the code, save it as a .java file.

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An enterprise resource planning (ERP) software program platform integrates and automates the firm's business processes into a common database. True False

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True. An enterprise resource planning (ERP) software program platform indeed integrates and automates a firm's business processes into a common database.

An enterprise resource planning (ERP) software program platform is designed to streamline and automate various business processes within an organization. It integrates different departments and functions, such as finance, human resources, manufacturing, supply chain, and customer relationship management, into a unified system.

The key feature of an ERP system is its ability to maintain a centralized database that serves as a single source of truth for all relevant data. This means that different departments can access and share information in real-time, eliminating data silos and promoting collaboration and efficiency.

By integrating business processes into a common database, an ERP system facilitates the flow of information and allows for seamless coordination across departments. This integration enables automation of routine tasks, reduces manual data entry and duplication, enhances data accuracy, and provides a holistic view of the organization's operations.

Therefore, it is true that an ERP software program platform integrates and automates a firm's business processes into a common database, leading to improved operational efficiency and decision-making capabilities.

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model that describes kinds of data and relationships among data is called_____.

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A model that describes the types of data and the relationships between them is referred to as a data model. A data model is used to specify the structure of data and the relationships between data elements in a consistent manner.

The objective of a data model is to represent the data and ensure that it is accessible to all data users. A data model also aids in data integration by providing a common set of terms and definitions for data elements. It also helps to define the rules and constraints that govern the data. A data model can be graphical or non-graphical in nature.

A graphical data model uses graphical symbols such as rectangles, ovals, and diamonds to represent data elements and their relationships. Non-graphical data models use textual descriptions to represent data elements and their relationships.Data models can be classified into three categories: conceptual data models, logical data models, and physical data models. Each of these models is used to represent the data in different ways, depending on the stage of the data design process.

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(a) List transport layer services. [3] (b) Write down the role of IP addresses and port numbers in selecting the final destination of data.

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(a) Transport layer services are services provided by the Transport Layer of the OSI Model to ensure reliable data communication between applications running on networked hosts.

The three most common Transport layer services are given below:

Reliable data transfer: Data that is sent from one device to another is subject to loss, duplication, and corruption. To ensure that the data arrives at its intended destination, the Transport layer ensures reliable data transfer.

Service Access Points: The Transport layer provides a service access point to enable applications to interact with the Transport layer, which in turn interacts with the network layer.

Connection-oriented services: The Transport layer establishes a connection between two devices before data is transferred. This connection ensures that data is delivered without errors, duplication, or loss.

(b) An IP address is a unique numerical identifier assigned to a network device, whereas a port number is a unique numerical identifier assigned to a process running on a network device.

The role of IP addresses and port numbers in selecting the final destination of data is as follows:

An IP address determines the destination network and device to which the data is to be sent. The network address part of an IP address identifies the destination network, whereas the host address part identifies the specific device. This helps the network layer to forward the data to the correct network and device.

A port number determines the specific process or service running on the destination device that is responsible for handling the incoming data. Port numbers range from 0 to 65,535, with certain numbers reserved for specific applications. By identifying the specific process or service on the destination device, the port number enables the Transport layer to deliver the incoming data to the correct process or service.

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Project 3.1 is a continuation of Project 2.1. You will use the QBO Company you created for Project 1.1 and updated in Project 2.1. Keep in mind the QBO Company for Project 3.1 does not reset and carries your data forward, including any errors. So it is important to check and crosscheck your work to verify it is correct before clicking the Save button. Mookie The Beagle™ Concierge provides convenient, high-quality pet care. Cy, the founder of Mookie The Beagle™ Concierge, asks you to assist in using QBO to save time recording transactions for the business.
P3.1.6 Invoice Transaction It is recommended that you complete Chapter 3 Project part P3.1.1 prior to attempting this question. Using the Mookie The Beagle™ Concierge app, Graziella requests pet care services for Mario, her pet Italian Greyhound, during an unexpected 2-day out of town business trip. Services provided by Mookie The Beagle™ Concierge were as follows. Pet Care: Intensive (48 hours total)
1. Complete an Invoice.
a) Select Create (+) icon > Invoice
b) Add New Customer: Mario Graziella
c) Select Invoice Date: 01/04/2022
d) Select Product/Service: Pet Care: Intensive
e) Select QTY: 48
f) Rate and Amount fields should autofill
g) What is the Balance Due for the Invoice?
(Answer this question in the table shown below. Round your answer 2 decimal places.) h) Select Save. Leave the Invoice window open.
BALANCE DUE FOR THE INVOICE=_______________
2. View the Transaction Journal for the Invoice.
a) From the bottom of the Mario Invoice, select More > Transaction Journal
b) What are the Account and Amount Debited? (Answer this question in the table shown below. Round your answer 2 decimal places.)
c) What are the Account and Amount Credited? (Answer this question in the table shown below. Round your answer 2 decimal places.)
ACCOUNT AMOUNT ________
DEBIT ____________________ _________________

CREDIT____________________ _________________

Answers

To complete the Invoice transaction in Project 3.1, follow these steps:

1. Complete an Invoice:
  a) Click on the Create (+) icon and select Invoice.
  b) Add the new customer "Mario Graziella".
  c) Set the Invoice Date to 01/04/2022.
  d) Select "Pet Care: Intensive" from the Product/Service dropdown.
  e) Set the QTY (quantity) to 48.
  f) The Rate and Amount fields should autofill.
  g) To find the Balance Due for the Invoice, calculate the total amount by multiplying the Rate by the QTY. Round your answer to 2 decimal places.
 
     BALANCE DUE FOR THE INVOICE = Rate x QTY = _______________

  h) Click on Save to save the Invoice. Keep the Invoice window open.

2. View the Transaction Journal for the Invoice:
  a) Scroll to the bottom of the Mario Invoice and select More, then click on Transaction Journal.
  b) In the table shown below, identify the Account and Amount that is debited. Round your answer to 2 decimal places.

     ACCOUNT: ____________________
     DEBIT: ______________________

  c) In the same table, identify the Account and Amount that is credited. Round your answer to 2 decimal places.

     ACCOUNT: ____________________
     CREDIT: _____________________

Please fill in the blanks with the correct account names and amounts based on your specific QBO data.

In Java Please.
\( 0 . \) Note: - The array is changed in place (i.e. the method updates the parameter array and it does not return a new array). - Do not import the java. util package. This has been done for you as

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The task is to implement a method in Java that moves all occurrences of the value 0 to the end of an array while preserving the order of the non-zero elements. The method should modify the array in place without returning a new array. The Java `util` package should not be imported for this task.

To solve this task, you can use a two-pointer approach. Initialize two pointers, `left` and `right`, both starting from the beginning of the array. Iterate through the array with the `right` pointer, and whenever a non-zero element is encountered, swap it with the element at the `left` pointer. Increment `left` by 1 after each swap.

This approach ensures that all non-zero elements are moved to the beginning of the array, while all zeros are shifted towards the end. Once the iteration is complete, all non-zero elements will be at the front of the array, and all zeros will be at the end.

Here's an example implementation:

```java

public static void moveZerosToEnd(int[] array) {

   int left = 0;

   int right = 0;

   while (right < array.length) {

       if (array[right] != 0) {

           int temp = array[left];

           array[left] = array[right];

           array[right] = temp;

           left++;

       }

       right++;

   }

}

```

By calling the `moveZerosToEnd` method and passing the desired array as a parameter, the array will be modified in place, with all zeros moved to the end while preserving the order of non-zero elements.

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Consider the cascade connection of two amplifiers, the first being an inverting amplifier with a gain of -10 V/V. What should be the minimum values ​​of ft1 (transition frequency), SR1 (Slew Rate), ft2 and SR2 necessary to ensure a bandwidth of 100 kHz with a signal at full power of 5V RMS?

Answers

To ensure a bandwidth of 100 kHz with a signal at full power of 5V RMS in a cascade connection of two amplifiers, the first being an inverting amplifier with a gain of -10 V/V, the minimum values required are ft1 and SR1 for the first amplifier, and ft2 and SR2 for the second amplifier.

In a cascade connection of amplifiers, the overall bandwidth is determined by the individual bandwidths of each amplifier. To calculate the minimum values of ft1, SR1, ft2, and SR2, we need to consider the requirements for the signal bandwidth and power.

The bandwidth required is 100 kHz, which means that both amplifiers should have a bandwidth greater than or equal to this value. Let's assume that ft1 is the transition frequency of the first amplifier and ft2 is the transition frequency of the second amplifier. To ensure a bandwidth of 100 kHz, both ft1 and ft2 should be at least 100 kHz.

The power of the signal is given as 5V RMS. The slew rate (SR) of an amplifier determines its ability to handle fast changes in the input signal. In this case, the slew rate requirements depend on the maximum rate of change of the input signal. To calculate the minimum slew rate for each amplifier, we need to consider the maximum rate of change of the input signal, which can be determined using the formula:

SR = 2πfVpk

where SR is the slew rate, f is the frequency, and Vpk is the peak voltage. Assuming a sinusoidal signal, the peak voltage can be calculated as √2 times the RMS voltage. Therefore, for each amplifier, the minimum slew rate required would be:

SR1 = 2π(100 kHz)(√2(5V))

SR2 = 2π(100 kHz)(√2(10V))

By calculating these values, you can determine the minimum required ft1, SR1, ft2, and SR2 to ensure a bandwidth of 100 kHz with a signal at full power of 5V RMS in the cascade connection of the two amplifiers.

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First-In-First-Out (FIFO) Algorithm
Pages
7
1
0
2
3
1
4
2
0
3
2
1
2
0
F1
F2
F3
Optimal Page Replacement Algori

Answers

First-In-First-Out (FIFO) Algorithm: The First-In-First-Out (FIFO) algorithm is the simplest algorithm for page replacement. The idea is very simple, the system keeps track of all the pages in memory in a queue, with the oldest page in the front and the newest page in the rear.

Optimal Page Replacement Algorithm: The Optimal Page Replacement algorithm replaces the page that will not be used for the longest time in the future. It is difficult to implement, because it requires the operating system to know the future memory references of the running process. I

The given reference string is: 7, 1, 0, 2, 3, 1, 4, 2, 0, 3, 2, 1, 2, 0. The reference string contains 14 page references.

FIFO Algorithm: If we use FIFO algorithm and apply it to the given reference string then it will generate the following sequence of page faults: 7, 1, 0, 2, 3, 1, 4, 2, 0, 3, 2, 1, 2, 0 and the number of page faults will be 9.

OPTIMAL Algorithm: If we use OPTIMAL algorithm and apply it to the given reference string then it will generate the following sequence of page faults: 7, 1, 0, 2, 3, 1, 4, 2, 0, 3, 2, 1, 2, 0 and the number of page faults will be 7.

Conclusion: The optimal page replacement algorithm always produces the minimum number of page faults. But it is very difficult to implement because it requires the knowledge of future memory references. Therefore, the FIFO algorithm is often used because it is easy to implement and does not require the knowledge of future memory references.

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Write a segment of MPI code that runs on exactly five processes. Otherwise, it terminates.
ii) Augment the code segment with the following executions : - In the beginning, initiate the values of x and y to be 4 and 3, respectively.
- Process 0 calculates and prints the value of equation: f0 = 4x
- Process 1 calculates and prints the value of equation: f1 = min(f0, y+4)
- Process 2 calculates and prints the value of equation: f2 = min(f1, 3x+y)
- Process 3 calculates and prints the value of equation: f3 = min(f2, f1+5)
- Process 4 calculates and prints the value of equation: f4 = max(f2, f1+5) The values of f0, f1, f2, f3, f4 must be locally computed by Processes 0, 1, 2, 3, 4, respectively.
iii) Augment the code segment to print the sum of {f0, f1, f2, f3, f4} with the minimum number of inter-process communication.

Answers

The MPI code segment provided runs on exactly five processes and performs the required calculations for each process. It prints the values of f0, f1, f2, f3, f4 locally for each process and then calculates the sum of these values with a single MPI_Reduce call, minimizing inter-process communication.

Here's an MPI code segment that runs on exactly five processes, performs the calculations as described, and prints the sum of {f0, f1, f2, f3, f4} with the minimum number of inter-process communication:

C

Copy code

#include <stdio.h>

#include <mpi.h>

int main(int argc, char** argv) {

   int rank, size;

   int x = 4, y = 3;

   int f0, f1, f2, f3, f4, sum;

   MPI_Init(&argc, &argv);

   MPI_Comm_rank(MPI_COMM_WORLD, &rank);

   MPI_Comm_size(MPI_COMM_WORLD, &size);

   if (size != 5) {

       printf("This code should be run with exactly 5 processes.\n");

       MPI_Finalize();

       return 0;

   }

   if (rank == 0) {

       f0 = 4 * x;

       printf("Process %d: f0 = %d\n", rank, f0);

   }

   if (rank == 1) {

       MPI_Recv(&f0, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);

       f1 = f0 < y + 4 ? f0 : y + 4;

       printf("Process %d: f1 = %d\n", rank, f1);

   }

   if (rank == 2) {

       MPI_Recv(&f1, 1, MPI_INT, 1, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);

       f2 = f1 < 3 * x + y ? f1 : 3 * x + y;

       printf("Process %d: f2 = %d\n", rank, f2);

   }

   if (rank == 3) {

       MPI_Recv(&f2, 1, MPI_INT, 2, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);

       f3 = f2 < f1 + 5 ? f2 : f1 + 5;

       printf("Process %d: f3 = %d\n", rank, f3);

   }

   if (rank == 4) {

       MPI_Recv(&f2, 1, MPI_INT, 2, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);

       f4 = f2 > f1 + 5 ? f2 : f1 + 5;

       printf("Process %d: f4 = %d\n", rank, f4);

   }

   // Calculate the sum of {f0, f1, f2, f3, f4} using a single MPI_Reduce call

   MPI_Reduce(&f0, &sum, 1, MPI_INT, MPI_SUM, 0, MPI_COMM_WORLD);

   if (rank == 0) {

       printf("Sum of f0, f1, f2, f3, f4 = %d\n", sum);

   }

   MPI_Finalize();

   return 0;

}

Explanation:

The code initializes the variables x and y to 4 and 3, respectively.

Each process performs the required calculations based on its rank and the received values from previous processes using MPI_Recv.

Process 0 calculates f0 and prints its value.

Process 1 calculates f1 and prints its value.

Process 2 calculates f2 and prints its value.

Process 3 calculates f3 and prints its value.

Process 4 calculates f4 and prints its value.

The sum of f0, f1, f2, f3, f4 is calculated using MPI_Reduce with the MPI_SUM operation, and the result is printed by process 0.

The code checks if the number of processes is exactly 5; otherwise, it terminates with an appropriate message.

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Create a game called Sheep Herder. The idea of the game is to herd the sheep (find) before the sheep are eaten. Simply put, the user chooses spots in a grid and if it is a sheep, the sheep was herded. In the game there will also be a dog and a wolf. If found, the dog will help in two ways: 1. Give the user an extra turn. 2. Fight the wolf if the wolf attacks you. If found, the wolf will attack you and you will lose unless you already found the dog. All animals have a random strength value (str). This will come in to play when the dog defends you from the wolf or the wolf bumps into the dog. Say the Dog str = 10 and the wolf’s str = 8. Well your dog would win and survive with only 2 left over and the poor wolf dies. But what if it was vise versa? Your dog would have died and the wolf survives with str = 2. But happily you still survive in either scenario.Now the game starts and the computer creates a 5x5 grid and randomly chooses a coordinate to put the sheep, dog and wolf.

Answers

The game called Sheep Herder involves herding sheep while avoiding a wolf. The player can find a dog to gain extra turns and defense against the wolf based on their respective strengths.

In the game Sheep Herder, the objective is to find the sheep in a 5x5 grid while avoiding the wolf. The computer randomly places the sheep, dog, and wolf on the grid. The player selects coordinates on the grid to uncover the hidden animals. If a sheep is found, it is herded successfully. If the wolf is found before finding the dog, the player loses. However, if the dog is found, it provides two benefits. Firstly, it grants the player an extra turn to continue searching. Secondly, if the wolf attacks, the dog's strength (str) is compared to the wolf's. If the dog has a higher strength, it defeats the wolf and the player survives.

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Which of the following must you perform to share a directory using NFS? (Choose all that apply.)

a.) Edit the /etc/exports file.
b.) Mount the directory to the /etc/exports directory using the mount command.
c.) Run the exportfs -a command.
d.) Start or restart the NFS daemons.

Answers

The following are the necessary procedures to share a directory using NFS: Editing the /etc/exports file. Mounting the directory to the /etc/exports directory using the mount command.(option a)

Running the exportfs -a command .Starting or restarting the NFS daemons. For NFS shares to be accessible to other computers, they must be defined in the /etc/exports file.

Every entry in this file describes a share and the hosts or networks that can access it. This file is read by the NFS daemon on startup and whenever it receives the SIGHUP signal.To mount an NFS file system, the mount command is used. The mount command specifies the file system to be mounted and the location of the mount point.

Exportfs command is used to export one or more directories or all directories of a file system to remote NFS clients. RPC services are the foundation of NFS communication. They're responsible for handling the RPC requests of clients and servers. They must be running in order for NFS to work. To get NFS to work on your system, you must install and start the necessary NFS services.

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Write a bash shell script called psping which checks
periodically if a specific executable has a live process.

Answers

this bash shell script is to check if a specific executable has a live process at periodic intervals. To achieve this, a function can be defined in the script which checks if the specific process is running or not. The function will be run at specified intervals using the sleep command.

The shell script will be called "piping".The steps to create this script are as follows: Step 1: Create a new file called "piping" using a text editor such as Vim or Nano. For example, using Vim, the command would be: vim pspingStep 2: Add the following shebang at the top of the script:#!/bin/bashStep 3: Define the function which will check if the specific process is running or not. This can be done using the "grep" command. For example, check_process() { if grep "$1" > /dev/null then echo "$1 is running" else echo "$1 is not running" fi}Step 4: Call the check_process function with the name of the executable as an argument. For example: while true do check_process "my_executable" sleep 5doneStep 5: Save the file and exit the text editor. To make the script executable, run the following command:chmod +x pspingThen, to run the script, simply execute the following command:./piping the script will run indefinitely, checking if the specified executable is running every 5 seconds. If the process is running, the script will output "my_executable is running". If the process is not running, the script will output "my_executable is not running".

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Write a program that accepts 3 command-line arguments:
input filename
output filename
an integer threshold
The input file is in the following format:
numRows
numCols_in_row1 value value ... value
numCols_in_row2 value value ... value
...
numCols_in_rowN value value ... value
You need to read the data from the input file, and write the number of values greater than the threshold on each row to an output file. Assume valid input; the file will exist and be formatted properly. Be sure to close your files.

Answers

Program to read data from an input file, count the number of values greater than a threshold on each row, and write the results to an output file.

To solve this problem, we will begin by reading the command-line arguments that include the input filename, output filename, and integer threshold. We will then open the input file and read in the data as specified in the format.

Once the data is read, we will loop over each row, count the number of values greater than the threshold, and store the result for each row. Finally, we will open the output file and write the results to it. It's important to close all files at the end of the program.

Here's an overview of the steps we will follow:

Read the command-line arguments: input filename, output filename, and threshold.

Open the input file and read the data.

Loop over each row in the data, count the number of values greater than the threshold, and store the result for each row.

Open the output file and write the results to it.

Close all files.

By following these steps, we can create a program that accepts three command-line arguments, reads data from an input file, counts the number of values greater than a threshold on each row, and writes the results to an output file.

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Just need help where it says "Your code goes here"
Convert totalGrams to hectograms, decagrams, and grams, finding the maximum number of hectograms, then decagrams, ther grams. Ex. If the input is 315 , the output is: Hectograms: 3 Decagrams: 1 Grams:

Answers

Your code goes here:

```python

totalGrams = 315

# Convert totalGrams to hectograms

hectograms = totalGrams // 100

# Calculate the remaining grams after converting to hectograms

remainingGrams = totalGrams % 100

# Convert the remaining grams to decagrams

decagrams = remainingGrams // 10

# Calculate the remaining grams after converting to decagrams

grams = remainingGrams % 10

# Find the maximum number of hectograms, decagrams, and grams

maxHectograms = totalGrams // 100

maxDecagrams = (totalGrams % 100) // 10

maxGrams = (totalGrams % 100) % 10

# Print the results

print("Hectograms:", hectograms)

print("Decagrams:", decagrams)

print("Grams:", grams)

```

The code snippet provided converts a given weight in grams, represented by the variable `totalGrams`, into hectograms, decagrams, and grams. It first calculates the number of hectograms by dividing the total grams by 100 and stores it in the variable `hectograms`. The remaining grams after converting to hectograms are then calculated using the modulo operator.

This remaining value is then divided by 10 to obtain the number of decagrams, which is stored in the variable `decagrams`. Finally, the remaining grams after converting to decagrams are calculated using the modulo operator and stored in the variable `grams`. The code also determines the maximum number of hectograms, decagrams, and grams present in the given weight and stores them in `maxHectograms`, `maxDecagrams`, and `maxGrams` respectively. The results are then printed.

To convert the weight from grams to hectograms, the code performs an integer division of `totalGrams` by 100, which gives the whole number of hectograms. This value is assigned to the variable `hectograms`. To find the remaining grams after converting to hectograms, the modulo operator `%` is used, which returns the remainder of the division. This remainder is stored in the variable `remainingGrams`.

Next, the code calculates the number of decagrams by dividing `remainingGrams` by 10 using integer division. The whole number of decagrams is assigned to the variable `decagrams`. To calculate the remaining grams after converting to decagrams, the modulo operator `%` is applied to `remainingGrams`. The result is the number of grams, which is stored in the variable `grams`.

Furthermore, the code determines the maximum number of hectograms, decagrams, and grams present in the given weight. The maximum number of hectograms is obtained by performing an integer division of `totalGrams` by 100 and assigned to `maxHectograms`.

The maximum number of decagrams is calculated by taking the remainder after converting to hectograms (i.e., `totalGrams % 100`) and dividing it by 10. This value is assigned to `maxDecagrams`. Finally, the maximum number of grams is obtained by applying the modulo operator twice, first to `totalGrams` divided by 100 (`totalGrams % 100`), and then to the result divided by 10 (`(totalGrams % 100) % 10`). The result is stored in `maxGrams`.

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1. Which of the following correctly describes polymorphism?
Check more if there is more than one answer correct
[] allows determination of which classes in a hierarchy is
referenced by a superclass va

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Polymorphism is a concept in object-oriented programming (OOP) where objects of different types can be treated as if they are the same type.

It means "many forms" and is used to encapsulate many different classes in a single interface. The following correctly describes polymorphism: Allows determination of which classes in a hierarchy are referenced by a superclass variable. Polymorphism is the ability to take many shapes. In computer programming, it refers to the concept that objects of different types can be accessed through the same interface.

With this feature, you can design classes that are part of the same hierarchy so that a user can treat any derived object as if it were a base object. Therefore, polymorphism is a concept that allows the determination of which classes in a hierarchy are referenced by a superclass variable, making it easier to reuse code.

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Explain how an arc is generated in a switchgear when it is interrupting a fault current and how this may cause damage. State two methods of arc extinction in circuit breakers. Then explain the objecti

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Arc generation in a switchgear:

When the switchgear interrupts a fault current, the circuit breaker contacts open, resulting in an arc.

It creates a current flow path with the ionized gas, which has a low impedance value.

When the contacts separate, the voltage between them causes an electrical arc.

The fault current continues to flow through the arc until it is interrupted.

Arc may cause damage:

When the arc is initiated, it can produce a lot of heat and a pressure wave, which can damage the switchgear and the surrounding area.

The heat of the arc can melt metal parts of the switchgear.

The pressure wave may be strong enough to break windows, cause hearing loss, or otherwise harm nearby people.

Methods of arc extinction in circuit breakers:

Two types of arc extinction methods in circuit breakers are:

1. Oil Circuit Breaker Method:

In oil circuit breakers, oil is used as a medium to extinguish the arc.

The arc is drawn into a chamber filled with oil. The energy from the arc heats the oil, which is then pumped out, separating the arc from the circuit.

2. Air Circuit Breaker Method:

Air circuit breakers are used in low-voltage applications.

They use the energy from the arc to ionize the air, which produces a conductive path, allowing the arc to be extinguished.

The arc's energy is dissipated in the surrounding air.

Objectives of arc extinction:

To ensure that the current can be interrupted safely and reliably, arc interruption is essential.

The following objectives of arc extinction are:

Reduction of pressure waves Reduction of heat produced by the arc Prevention of re-ignition of the arc.

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An information system is a large and highly-specialized server that hosts the database for large businesses, generally those with over 10,000 employees.
False

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The given statement "An information system is a large and highly-specialized server that hosts the database for large businesses, generally those with over 10,000 employees" is False because it helps to automate time-consuming processes and provides insight into the business's operations.

What is an information system?

An information system is a set of processes, equipment, and people that collect, store, and distribute data. It aids in decision-making by providing valuable information. It's an essential component of any organization.

Examples include transaction processing systems, management information systems, decision support systems, and executive information systems.

Therefore the correct option is  False

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Introduction, How was your industry affected by scarcity during the covid pandemic? 3 Snapshots - Compare and contrast your industry before, during, and post pandemic. Did cost benefit analysis play a role in your industry during the covid-l9 pandemic? Did the paradox of value play a role in your industry during the covid-19 pandemic? What are the short term and long term effects of Covid-l9 on your industry? How did "want vs need" play a role in your industry during the pandemic? How did your industry adjust to the pandemic? (was your business moved to a virtual platform, did it halt, or did it stay the same) Conclusion, Where do you see your industry going in a post pandemic world?

Answers

During the COVID-19 pandemic, the industry was greatly affected by scarcity. Let's compare and contrast the industry before, during, and after the pandemic.

Before the pandemic, the industry operated with normal levels of supply and demand. However, during the pandemic, scarcity became a major issue. Many industries experienced disruptions in their supply chains due to lock downs and travel restrictions. This resulted in shortages of raw materials, components, and finished products.

Cost-benefit analysis played a crucial role during the pandemic. Companies had to weigh the costs of implementing safety measures, such as  protocols and remote work arrangements, against the potential benefits of keeping their employees and customers safe. For instance, businesses had to invest in protective barriers,  equipment, and employee training, which increased costs but were necessary to continue operations.

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Question 1
An audio earpiece such as Apple Airpods Pro has spatial audio
feature that can track human head movement to give surround sound
effect. Assuming you are listening to the audio that is strea

Answers

Assuming you are listening to the audio that is streamed from a device that has a gyroscope and an accelerometer.

Audio earpiece, spatial audio, Apple AirPods Pro, surround sound effect, human head movement, gyroscope, accelerometer.

When you listen to an audio that is streamed from a device such as Apple AirPods Pro that has a gyroscope and an accelerometer, you will have a surround sound effect that is as a result of the spatial audio feature.

This feature is responsible for tracking the movement of your head while listening to the audio that is streamed from the device. Hence, it gives an illusion of a more realistic and natural listening experience by allowing the sound to be projected from multiple directions at the same time.

This means that the audio will be in sync with your head movement, allowing you to hear the sounds as though you are in a virtual environment, giving you the impression that you are surrounded by the sound.

This is a significant advancement in audio technology that has greatly enhanced the way people listen to music, watch movies, and play games on their devices.

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What does this code do when Ox01 is written to REG_CTRL1 register to the MMA8451Q Accelerometer? i2c_write_byte(MMA_ADDR, REG_CTRL1, 0x01): Which of the following statements is false? (1) write Ox01 to REG_CTRLI to set the active mode. (2) Set the accelerometer output data to 14 bits (3) Set Output Data Rate (ODR) to 400 Hz

Answers

The following statements are true when `0x01` is written to the `REG_CTRL1` register to the MMA8451Q accelerometer:1. Write `0x01` to `REG_CTRL1` to set the active mode.2. Set the accelerometer output data to 14 bits.3. Set Output Data Rate (ODR) to 400 Hz. Therefore, the false statement is not applicable. All statements are true. Hence, the correct option is (3) All statements are true.

When Ox01 is written to the REG_CTRL1 register of the MMA8451Q Accelerometer using the code i2c_write_byte(MMA_ADDR, REG_CTRL1, 0x01), it performs the following actions: (1) It sets the accelerometer to active mode by writing Ox01 to the REG_CTRL1 register.

This means the accelerometer will start sensing and measuring the acceleration. (2) It does not set the accelerometer output data to 14 bits. The number of bits for the output data is not affected by this code. (3) It does not set the Output Data Rate (ODR) to 400 Hz. The code does not include any instructions to change the ODR. Therefore, statement (3) is false.

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The complete questions is:

What does this code do when Ox01 is written to REG_CTRL1 register to the MMA8451Q Accelerometer? i2c_write_byte(MMA_ADDR, REG_CTRL1, 0x01)

Which of the following statements is false?

(1) write Ox01 to REG_CTRLI to set the active mode.

(2) Set the accelerometer output data to 14 bits

(3) Set Output Data Rate (ODR) to 400 Hz

CHOOSE THE CORRECT OPTION

(3)(1)All statements are true(2)

Explain how the plan for a software project is free to the customer.

Answers

The plan for a software project is typically provided free of charge to the customer as part of the pre-sales process.

When a customer approaches a software development company for a potential project, the initial phase involves gathering requirements and understanding the scope of work. During this phase, the software development company collaborates with the customer to create a project plan. This plan outlines the key objectives, deliverables, timelines, and resources required for the project.

The purpose of providing this plan for free is to showcase the software development company's capabilities, expertise, and understanding of the customer's needs. It serves as a proposal or a blueprint for the project, giving the customer an overview of how the software development company intends to approach and execute the project.

By offering the plan at no cost, the software development company aims to demonstrate its commitment, professionalism, and willingness to work with the customer. It allows the customer to evaluate the proposed solution and make an informed decision about whether to proceed with the software development company for the project.

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The data shown below is part of a data file for the weather conditions for playing some unspecified game. Identify a suitable classification algorithm for this data, identify the model inputs and output, and clearly state the types of data preparation needed for this data if Python programming is used. outlook temperature humidity windy play sunny 85 85 FALSE maybe sunny 80 90 TRUE no overcast 83 86 FALSE yes rainy 70 96 FALSE maybe 68 80 FALSE yes 65 70 TRUE no 64 65 TRUE yes 72 95 FALSE no 69 70 FALSE yes 75 80 FALSE maybe 75 70 TRUE yes 72 90 TRUE maybe 81 75 FALSE yes 71 91 TRUE no rainy rainy overcast sunny sunny rainy sunny overcast overcast rainy

Answers

Based on the given data, a suitable classification algorithm for predicting the "play" outcome would be the Decision Tree algorithm.

The Decision Tree algorithm can handle categorical and numerical data, making it appropriate for this scenario.

The model inputs for this classification problem would be the "outlook," "temperature," "humidity," and "windy" attributes. The model output would be the "play" attribute, indicating whether the game can be played or not.

To prepare the data for the Decision Tree algorithm in Python, the following steps can be taken:

Import the required libraries, such as scikit-learn.Load the data into a suitable data structure, such as a Pandas DataFrame.Convert categorical variables (e.g., "outlook," "windy") into numerical format using techniques like one-hot encoding or label encoding.Split the data into training and testing sets for model evaluation.Create an instance of the Decision Tree classifier from scikit-learn.Fit the classifier to the training data using the input features and target variable.Make predictions on the testing data using the trained classifier.Evaluate the model's performance by comparing the predicted values with the actual values.

By following these steps, the given data can be prepared and used to train a Decision Tree classification model in Python.

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The main focus of beta is testing features and components. So,
if users perform beta tests, what are the tests the programmer
performs? When are they conducted? Before or after beta?

Answers

The programmer conducts different tests than the users during beta testing. These tests, known as developer tests, focus on ensuring the stability, functionality, and compatibility of the software. They are typically conducted before the beta phase begins.

When it comes to beta testing, the primary goal is to obtain valuable feedback from real users who are not directly involved in the development process. Beta testers are typically individuals or a group of users who voluntarily use the software or product in their real-world scenarios. They explore various features and functionalities to identify any bugs, usability issues, or areas that require improvement.

On the other hand, the programmer's role includes conducting tests that ensure the software's stability, functionality, and compatibility. These tests are commonly referred to as developer tests. The programmer performs rigorous testing before the software reaches the beta phase. They focus on unit testing, integration testing, and system testing to identify and fix any issues, ensuring that the software is in a reliable state before it is exposed to a larger audience.

Once the programmer completes the initial testing phase and the software is deemed stable, the beta testing phase begins. Beta tests involve distributing the software to a wider user base, often through a beta program or by releasing a beta version to the public. This allows users from different backgrounds to interact with the software and provide feedback based on their real-world experiences.

The distinction between the tests performed by users and programmers is essential. Beta testing primarily focuses on gathering feedback and identifying user-centric issues, while programmer testing is concentrated on ensuring the overall quality and stability of the software. By conducting these different tests at different stages, developers can enhance the software's reliability, functionality, and user satisfaction.

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IoT devices, such as Internet-connected video cameras, are generally immune from being comprised by hackers. true or flase

Answers

False. IoT devices, including Internet-connected video cameras, can be vulnerable to hacking if proper security measures are not implemented.

What are some common security measures to protect IoT devices from being compromised by hackers?

IoT devices, including Internet-connected video cameras, are not immune from being compromised by hackers. These devices can have security vulnerabilities that can be exploited if appropriate security measures are not in place.

Hackers can exploit weak passwords, software vulnerabilities, or insecure network configurations to gain unauthorized access to IoT devices. Once compromised, these devices can be used for various malicious activities, such as unauthorized surveillance, data theft, or even launching large-scale cyber attacks.

Therefore, it is essential to implement robust security practices, such as regularly updating device firmware, using strong passwords, and securing the network infrastructure to mitigate the risks associated with IoT device vulnerabilities.

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By using the asymmetric encoding principle from lecture slides, encode number 89 by using the following parameters: p=13, q=19, e=7. Pick smallest possible "d". Define all results, according to lecture slides: N = d = C =

Answers

By using the given parameters p = 13, q = 19, and e = 7, we can encode the number 89 using the asymmetric encoding principle. Let's calculate the values:

1. Calculate N: N = p * q = 13 * 19 = 247.

2. Calculate φ(N): φ(N) = (p - 1) * (q - 1) = 12 * 18 = 216.

3. Find the smallest possible value for d, which satisfies the equation (d * e) mod φ(N) = 1. In this case, d = 31.

4. Calculate C (the encoded value): C = (89^e) mod N = (89^7) mod 247 = 39.

Therefore, the results are as follows:

N = 247

d = 31

C = 39

In this encoding process, N represents the product of the two prime numbers p and q, d is the private key used for decoding, and C represents the encoded value of the number 89.

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Java language
5. Write an Employee class that has two instance variables workingHours and basicWage. There is also a method printWage to compute the total wage of an employee and print the total wage. You can set a

Answers

The solution involves creating two classes, Employee and Accountant.

The Employee class contains a method, calcSalary, accepting a string argument for the name and a varargs argument for the salary. The Accountant class creates an instance of the Employee class and uses its method with various amounts of data.

The Employee class has the method calcSalary that uses varargs to take in various numbers of salaries. This method calculates the total salary and prints the employee's name and their total salary. The Accountant class, on the other hand, creates an instance of the Employee class and uses the calcSalary method to process various data. Varargs in Java is a feature that allows a method to accept zero or multiple arguments of the same type.

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In a landmark decision, the Court of Appeal ruled in August that South Wales Police’s (SWP) facial recognition deployments breached human rights and data protection laws.
The decision was made on the grounds that SWP’s use of the technology was "not in accordance" with citizens’ Article 8 privacy rights; that it did not conduct an appropriate data protection impact assessment; and that it did not comply with its public sector equality duty to consider how its policies and practices could be discriminatory..Analyse using ethical egoism and utilitarianism theory

Answers

Ethical egoism prioritizes individual rights and personal interests, while utilitarianism focuses on the overall happiness and well-being of society.

What are the key considerations of ethical egoism and utilitarianism in analyzing the Court of Appeal's ruling on SWP's facial recognition deployments?

The Court of Appeal's ruling in August, which declared that South Wales Police's (SWP) facial recognition deployments violated human rights and data protection laws, can be analyzed from the perspectives of ethical egoism and utilitarianism theory.

Ethical egoism focuses on the self-interest and personal rights of individuals. In this case, ethical egoism would consider the impact of SWP's facial recognition technology on the privacy rights of citizens. The ruling suggests that the technology was not aligned with Article 8 privacy rights, indicating a breach of individual rights.

From an ethical egoist standpoint, the decision would be seen as a positive outcome, as it prioritizes the protection of personal privacy and rights over the interests of the police force.

Utilitarianism theory, on the other hand, evaluates actions based on their overall impact on society's happiness and well-being. Applying utilitarianism to this case would involve weighing the benefits and harms of SWP's facial recognition deployments. The court's decision implies that the technology did not meet the required standards, potentially leading to violations of privacy and data protection.

From a utilitarian perspective, the ruling would be considered favorable as it aims to safeguard the collective welfare of society by ensuring the proper use of technology and protecting individuals from potential harm.

Overall, both ethical egoism and utilitarianism support the Court of Appeal's decision, albeit from different angles. Ethical egoism emphasizes individual rights and privacy, while utilitarianism focuses on the overall welfare and happiness of society.

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Systems Administration & Management
Which of the following statements is INCORRECT with regard to the General Public License (GPL)? The user can copy the (binary) software as often as the user wishes. The user cannot distribute the sour

Answers

The incorrect statement regarding the General Public License (GPL) is: "The user cannot distribute the source (binary) software as often as the user wishes."

The General Public License (GPL) grants users the freedom to copy and distribute both the binary and source code of the software. This means that the first part of the statement is correct: the user can copy the binary software as often as they wish. However, the second part of the statement is incorrect. The GPL allows the user to distribute the source code of the software, giving them the freedom to share and modify it.

The GPL is a widely used open-source software license that ensures users have certain freedoms and rights. It provides the freedom to use, study, modify, and distribute the software. When a user receives GPL-licensed software, they also receive the corresponding source code or a written offer to obtain the source code. This allows users to make changes, customize the software, and distribute it further.

By allowing the distribution of both the binary and source code, the GPL promotes collaboration and community involvement. It encourages users to contribute their modifications back to the community, fostering innovation and improvement of the software over time. This philosophy of openness and sharing is at the core of the GPL and the broader open-source movement.

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Support your point view with remedial action. Q2a In a communication network the below are said to be both transmit and receive Signal. Represent them in polynomial form. 111100011100001 001100110011111 110001110001100 100110011100011 1.

Answers

The given binary signals can be presented in polynomial form, we can use the polynomial representation where the coefficients of the polynomial correspond to the binary bits. Let's represent each binary signal in the polynomial form:

Signal 1: 111100011100001

The polynomial representation is: x^15 + x^14 + x^13 + x^12 + x^5 + x^4 + x^3 + x^2 + 1

Signal 2: 001100110011111

The polynomial representation is: x^14 + x^13 + x^10 + x^9 + x^6 + x^5 + x^2 + x + 1

Signal 3: 110001110001100

The polynomial representation is: x^14 + x^13 + x^9 + x^8 + x^7 + x^4 + x^3 + x^2

Signal 4: 100110011100011

The polynomial representation is: x^14 + x^11 + x^10 + x^9 + x^6 + x^5 + x^4 + x + 1

These polynomial representations allow us to express the binary signals in a concise and algebraic form, which can be useful in various applications, including error detection and correction in communication systems.

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those portions of the celestial sphere near the celestial poles that are either always above or always below the horizon*these kind of stars never rise and never set since they remain above/below the horizonRight Ascension (RA)DeclinationCircumpolar Hilton Barbados adopted advanced food waste tracking technology for a period of six months to measure their food waste and determine the return on investment of food waste prevention and management efforts. By relying on support from their Blue Energy Committee, kitchen management and sous chefs began looking at how food waste relates to covers and occupancy, and where food waste reduction could save money. In the beginning, it was not easy getting the staff on-board to participate, especially those that are less confident or tech-savvy; developing the right style of leadership by sous chefs and kitchen management; managing time to track waste during a busy rush; and finding logistically feasible options for saved food, such as off-loading. Hilton Barbados learned first-hand how effective food waste measurement can drive an organization toward environmental goals as well as their intended social impact.Question: answer in bullets what were the challenges faced by Hilton Barbados and what was the purpose of this implementation. Zambia has issued three sovereign bonds since the previous PF administration ascended to power in 2011. Using bond ranking measures determine the performance of the three sovereign bond issues from the time of issue to-date. 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Read and validate five cards from the keyboard, one card per line. Each card should consist of a two-letter code such as 3H or TS. Permit the user to enter either lower-case or upper-case letters.void sort(). Sort the five cards in increasing order by spot value (ignore the suits when sorting). For example, if the hand was originally TH, 3S, 4D, 3C, KS, then the sorted hand would be 3S, 3C, 4D, TH, KS. Use insertion sort and pointers.