Answer:
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Create and configure databases in oracle database management system operation administration
Answer:
You typically create a database during Oracle Database software installation. However, you can also create a database after installation.
Reasons to create a database after installation are as follows:
You used Oracle Universal Installer (OUI) to install software only, and did not create a database. You want to create another database (and database instance) on the same host computer as an existing Oracle database. In this case, this chapter assumes that the new database uses the same Oracle home as the existing database. You can also create the database in a new Oracle home by running OUI again. You want to make a copy of (clone) a database.
Complete the AscendingAndDescending application so that it asks a user to enter three integers. Display them in ascending and descending order.An example of the program is shown below:Enter an integer... 1 And another... 2 And just one more... 3 Ascending: 1 2 3 Descending: 3 2 1GradingWrite your Java code in the area on the right. Use the Run button to compile and run the code. Clicking the Run Checks button will run pre-configured tests against your code to calculate a grade.Once you are happy with your results, click the Submit button to record your score.
Answer:
Following are the solution to the given question:
import java.util.Scanner;//import package
public class AscendingAndDescending//defining a class AscendingAndDescending
{
public static void main(String[] args) //main method
{
int n1,n2,n3,min,max,m;
Scanner in = new Scanner(System.in);//creating Scanner class object
System.out.print("Enter an integer: ");//print message
n1 = in.nextInt();//input value
System.out.print("And another: ");//print message
n2 = in.nextInt();//input value
System.out.print("And just one more: ");//print message
n3 = in.nextInt();//input value
min = n1; //use min variable that holds value
max = n1; //use mix variable that holds value
if (n2 > max) max = n2;//use if to compare value and hols value in max variable
if (n3 > max) max = n3;//use if to compare value and hols value in max variable
if (n2 < min) min = n2;//use if to compare value and hols value in min variable
if (n3 < min) min = n3;//use if to compare value and hols value in min variable
m = (n1 + n2 + n3) - (min + max);//defining m variable that arrange value
System.out.println("Ascending: " + min + " " + m + " " + max);//print Ascending order value
System.out.println("Descending: " + max + " " + m + " " + min);//print Descending order value
}
}
Output:
Enter an integer: 8
And another: 9
And just one more: 7
Ascending: 7 8 9
Descending: 9 8 7
Explanation:
In this program inside the main method three integer variable "n1,n2, and n3" is declared that inputs value from the user end and also defines three variable "min, max, and m" that uses the conditional statement that checks inputs value and assigns value according to the ascending and descending order and prints its values.
List safety conditions when downloading shareware, free free where, or public domain software
Answer:
Explanation:
Freeware and shareware programs are softwares which are either free of charge or consist of a free version for a certain trial period. These programs pose a threat of habouring malware or viruses which could damage one's computer and important files and programs. Therefore, it is imperative that carefulness is maintained when trying to get these softwares.
Some of the necessary safety conditions that should be taken include;
1) Appropriate research about the software including taking more about the vendors and reviews.
2.) Once, a healthy review has been identified ; the download can begin with the Downloader ensuring that the download is from the recommended site.
3) Prior to installation the software should be scanned with an active anti-virus program to determine if there is possibility that a virus has creeped in.
4.) Some softwares may require that computer anti-virus be turned off during installation, this is not always a good idea as this act leaves the system vulnerable a d badly exposed.
Java !!!
A common problem in parsing computer languages and compiler implementations is determining if an input string is balanced. That is, a string can be considered balanced if for every opening element ( (, [, <, etc) there is a corresponding closing element ( ), ], >, etc).
Today, we’re interested in writing a method that will determine if a String is balanced. Write a method, isBalanced(String s) that returns true if every opening element is matched by a closing element of exactly the same type. Extra opening elements, or extra closing elements, result in an unbalanced string. For this problem, we are only interested in three sets of characters -- {, (, and [ (and their closing equivalents, }, ), and ]). Other characters, such as <, can be skipped. Extra characters (letters, numbers, other symbols) should all be skipped. Additionally, the ordering of each closing element must match the ordering of each opening element. This is illustrated by examples below.
The following examples illustrate the expected behaviour:
is Balanced ("{{mustache templates use double curly braces}}") should return true
is Balanced("{{but here we have our template wrong!}") should return false
is Balanced("{ ( ( some text ) ) }") should return true
is Balanced("{ ( ( some text ) } )") should return false (note that the ordering of the last two elements is wrong)
Write an implementation that uses one or more Stacks to solve this problem. As a client of the Stack class, you are not concerned with how it works directly, just that it does work.
Answer:
Explanation:
import java.util.*;
public class BalancedBrackets {
// function to check if brackets are balanced
static boolean isBalanced(String expr)
{
Stack<Character> stack = new Stack<Character>();
for (int i = 0; i < expr.length(); i++)
{
char x = expr.charAt(i);
if (x == '(' || x == '[' || x == '{')
{
// Push the element in the stack
stack.push(x);
continue;
}
if (stack.isEmpty())
return false;
char check;
switch (x) {
case ')':
check = stack.pop();
if (check == '{' || check == '[')
return false;
break;
case '}':
check = stack.pop();
if (check == '(' || check == '[')
return false;
break;
case ']':
check = stack.pop();
if (check == '(' || check == '{')
return false;
break;
}
}
// Check Empty Stack
return (stack.isEmpty());
}
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
System.out.println("\nEnter the expression to check is balanced or not !");
String expr = scan.nextLine();
boolean output;
output = isBalanced(expr);
System.out.println(output);
if (output)
System.out.println("Balanced ");
else
System.out.println("Not Balanced ");
scan.close();
}
}
Explain the following terms.
a) Explain Final keyword with example. b) Define Static and Instance variables
Answer:
A.
the final keyword is used to denote constants. It can be used with variables, methods, and classes. Once any entity (variable, method or class) is declared final , it can be assigned only once.
B.
Static variables are declared in the same place as instance variables, but with the keyword 'static' before the data type. While instance variables hold values that are associated with an individual object, static variables' values are associated with the class as a whole.
Write a method swapArrayEnds() that swaps the first and last elements of its array parameter. Ex: sortArray
I understand you want a function that swaps the first and last element of an array so that the first element takes the last one's value and vice versa.
Answer and Explanation:
Using Javascript programming language:
function swapArrayEnds(sortArray){
var newArray= sortArray.values();
var firstElement=newArray[0];
newArray[0]=newArray[newArray.length-1];
newArray[newArray.length-1]=firstElement;
return newArray;
}
var exampleArray=[2, 5, 6, 8];
swapArrayEnds(exampleArray);
In the function above we defined the swapArray function by passing an array parameter that is sorted by swapping its first and last element. We first get the elements of the arrayvusing the array values method. We then store the value of the first element in the variable firstElement so that we are able to retain the value and then switch the values of the first element before using the firstElement to switch value of the last element. We then return newArray and call the function.
Register the countChars event handler to handle the keydown event for the textarea tag. Note: The function counts the number of characters in the textarea.
Do not enter anything in the HTML file, put your code in the JavaScript section where it says "Your solution goes here"
1 klabel for-"userName">user name: 2
3
Answer:
Explanation:
The following Javascript code is added in the Javascript section where it says "Your solution goes here" and counts the current number of characters in the text within the textArea tag. A preview can be seen in the attached image below. The code grabs the pre-created variable textareaElement and attached the onkeypress event to it. Once a key is pressed it saves the number of characters in a variable and then returns it to the user.
var textareaElement = document.getElementById("userName");
function textChanged(event) {
document.getElementById("stringLength").innerHTML = event.target.value.length;
}
// Your solution goes here
textareaElement.onkeypress = function() {
let numOfCharacters = textareaElement.value.length;
return numOfCharacters;
};
Write a partial class that shows a class constant and an instance method. Write an instance method that converts feet to inches using a class constant representing the number of inches in one foot. The value passed to the method represents the distance in feet.
Answer:
Please the code snippet below, the code was writen in Kotlin Language
Explanation:
const val inches:Int= 12 . //This is the const value
fun main(args: Array<String>) {
//this will ask the user for input
print("Enter a number")
//this will do the conversion
var valueInFeet= Integer.valueOf(readLine())*inches
print("The value in feet is $valueInFeet feet(s)")
}
A small company with 100 computers has hired you to install a local area network. All fo the users perform functions like email, browsing and Office software. In addition, 25 of them also do a large number of client/server requests into a database system. Which local area network operating system would you recommend?
Answer:
Based on the requirements indicated in the question above, the best Local Area Network (LAN) operating system that can be used is
Windows 7 , 8.1 or Windows 10. This is because they all are configured to handle extensive LAN activity and can connect over 200 users.
Explanation:
Generally speaking, Windows 10 packs more improvement over the previous windows.
Cheers
Tips for Interactions with Personalized LinkedIn Outreach?
Answer:
Follow the best strategies for personalized LinkedIn outreach through 2021.
Run an Outreach Campaign for niche-specific People Collect Data about your Audience Keep your message short Save your Sale Pitches for later Give them a reason to reply to you
Can anyone decipher these? There a bit random. Maybe binary but if there are other ways please include them.
Answer:
Explanation:
so this is what "format" is about, it's saying what do the ones and zeros represent. b/c the bits can represent lots of different things , like letters with ascii code , and that's got several types. some are 8 bits, some are 16 bits, the questions you've shown are in groups of 5 which is really not a "thing" in binary, it's always by twos, without some type of "frame work" around the bits, we won't know what they represent, if that is helping? the important part is what is the "frame work" that these bits are in.
all of your questions seem to have some "art" thing going on, they make some kinda of binary artwork, for what they are saying, that's not what's important. Other than if they form palindromes, maybe that's what the questions are really about, how these do from palindromes, that is, they read the same backwards as forwards... I know.. why would anyone read backwards.. but a computer can do that pretty quickly, sooo sometimes to check, it will read forwards and backwards.. but when there is a palindrome, the computer is "confused"
this is also a big big part of "typing" not like on a keyboard but when you program, and you say that your variables are of a certain type, like a char, or a string, or a double, you are specifying how many bits will be used to represent your data. so then when you put the ones and zeros into the memory , ( think RAM) then it's stored in groups of what ever size you've determined. hmmmm does this help?
Discuss why databases are important in accounting information systems. Describe primary and foreign keys, normalization and database cardinalities. Why are each important to the database design
Answer:
ensure integrity. primary key is unique key..foreign key is to connect 2 table.normalization to ensure you keep track on what you should do to create db..
Which of the following was one reason why electronic (computer-based) information sharing was challenging in the not too distant past?
a. Individuals and/or members of organizations did not speak the same language.
b. Hardware and software applications on either end could not talk to one another.
c. The most powerful computers were owned by large companies.
d. Organizations needed to protect information for competitive advantage.
Answer:
B. Hardware and software applications on either end could not talk to one another.
Explanation:
The answer to this question is that making connection to the internet used to be very slow, it's operation was difficult and so was its maintenance. Therefore they could be said to be unreliable at the time making electronic information sharing difficult as well as challenging. From this explanation the right answer to this question is answer option b.
Thank you.
Assume myString and yourString are variables of type String already declared and initialized. Write ONE line of code that sets yourString to the first character and the last character of myString added to myString variable.
Answer:
line of code :
newString=myString+myString.charAt(0)+myString.charAt(myString.length()-1);
Explanation:
In Java, the + is used for concatenation
method
charAt() will return the character from the given index from string
myString.charAt(0) will return E
myString.charAt(myString.length()-1)
The part of the computer that provides access to the Internet is the
Answer:
MODEM
Explanation:
When implementing a 1:1 relationship, where should you place the foreign key if one side is mandatory and one side is optional? Should the foreign key be mandatory or optional?
Answer:
When implementing a 1:1 relationship, the foreign key should be placed on the optional side if one side is mandatory and one side is optional.
When this is implemented, the foreign key should be made mandatory.
Explanation:
A foreign key (FK) is a primary key (PK) in relational databases. It is used to establish a relationship with a table that has the same attribute with another table in the database. A mandatory relationship exists when the foreign key depends on the parent (primary key) and cannot exist without the parent. A one-to-one relationship exists when one row in a data table may be linked with only one row in another data table.
Write a recursive function that calculates the sum 11 22 33 ... nn, given an integer value of nin between 1 and 9. You can write a separate power function in this process and call that power function as needed:
Answer:
The function in Python is as follows:
def sumDig(n):
if n == 1:
return 11
else:
return n*11 + sumDig(n - 1)
Explanation:
This defines the function
def sumDig(n):
This represents the base case (where n = 1)
if n == 1:
The function returns 11, when it gets to the base case
return 11
For every other value of n (n > 1)
else:
This calculates the required sum recursively
return n*11 + sumDig(n - 1)
command create database in oracle database ::((
Answer:
kdkskskiisidiodoosooddodod
You are developing a Windows forms application used by a government agency. You need to develop a distinct user interface element that accepts user input. This user interface will be reused across several other applications in the organization. None of the controls in the Visual Studio toolbox meets your requirements; you need to develop all your code in house.
Required:
What actions should you take?
Answer:
The answer is "Developing the custom control for the user interface"
Explanation:
The major difference between customized control & user control would be that it inherit throughout the inheritance tree at different levels. Usually, a custom power comes from the system. Windows. UserControl is a system inheritance.
Using accuracy up is the major reason for designing a custom UI control. Developers must know how to use the API alone without reading the code for your component. All public methods and features of a custom control will be included in your API.
Which key should you press to leave the cell as it originally was?
Answer:
Backspace.
Explanation:
Cancel Button you should press to leave the cell as it originally was. Cancel Button you should press to leave the cell as it originally was. This answer has been confirmed as correct and helpful.
Backspace is press to leave the cell as it originally was.
What is Backspace key?The Backspace key is situated in the top-right corner of the character keys part of the keyboard.
Backspace is replaced by a "delete" key on Apple computers, although it serves the same purpose.
There are no "backspace" keys on an Android or Apple iPhone smartphone or iPad tablet, but there is a key that serves the same purpose. Look for a key that resembles an arrow with a "X" or an arrow pointing left, as illustrated in the image.
Therefore, Backspace is press to leave the cell as it originally was.
To learn more about backspace, refer to the link:
https://brainly.com/question/29790869
#SPJ2
Using Python suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]).
You are given a target value to search. If found in the array return its index, otherwise return “The input is not on this list”
You may assume no duplicate exists in the array.
Hint: Use a function. Use the built in method .index( ) and/or for loops.
Answer:
Explanation:
class Solution {
public int search(int[] nums, int target) {
int n = nums.length;
int low = 0 , high = n - 1;
While(low < high){//Set virtual node
int mid = (low + high) / 2;
if(nums[mid] > nums[high]){
low = mid + 1;
}else{
high = mid;
}
}
int rot = low;
low = 0;
high = n - 1;
while(low <= high){
int mid = (low + high) / 2;
Int real = (mid + rot) % n;//The virtual node is mapped to the real node.
if(nums[real] == target){
return real;
}else if(nums[real] < target){
low = mid + 1;
}else{
high = mid - 1;
}
}
return -1;
}
}
Which attack form either exploits a software flaw or floods a system with traffic in order to prevent legitimate activities or transactions from occurring?
Answer:
Denial of service attack.
Explanation:
In Cybersecurity, vulnerability can be defined as any weakness, flaw or defect found in a software application or network and are exploitable by an attacker or hacker to gain an unauthorized access or privileges to sensitive data in a computer system.
This ultimately implies that, vulnerability in a network avail attackers or any threat agent the opportunity to leverage on the flaws, errors, weaknesses or defects found in order to compromise the security of the network.
Data theft can be defined as a cyber attack which typically involves an unauthorized access to a user's data with the sole intention to use for fraudulent purposes or illegal operations. There are several methods used by cyber criminals or hackers to obtain user data and these includes DDOS attack, SQL injection, man in the middle, phishing, sniffing, DOS attack, etc.
A denial of service (DOS) attack is a form of cyber attack that involves either the exploitation of a software flaw or overwhelmingly floods a computer system in a network with traffic in order to prevent authorized users from performing legitimate activities or transactions.
Some of the ways to prevent vulnerability or cyber attacks in a network are;
1. Ensure you use a very strong password with complexity through the use of alphanumerics.
2. You should use a two-way authentication service.
3. You should use encrypting software applications or services.
Data representation and interactivity are important aspects of data visualization.
a. True
b. False
Answer:
a. True
Explanation:
Data visualization are defined as the representation of the data and information in graphical way. The data visualization tool uses charts, diagrams, graphs, maps, etc. to represent and visualized the information and understand the patter or trend in the data.
It is an effective way to interact with the user and works likes a form of a visual art.
Thus interactivity and data representations are the two important aspect of the data visualization.
Hence, the answer is true.
What is machine learning
Answer:
machine learning is the ability for computers to develop new skills and algorithms without specific instructions to do so.
solve(-8/3)+7/5 please answer
Answer:
hope this will help you more
Hey ! there
Answer:
-19/15 is the answerExplanation:
In this question we are given two fraction that are -8/3 and 7/5. And we have asked to add them .
Solution : -
[tex]\quad \: \dashrightarrow \qquad \: \dfrac{ - 8}{3} + \dfrac{7}{5} [/tex]
Step 1 : Taking L.C.M of 3 and 5 , We get denominator 15 :
[tex]\quad \: \dashrightarrow \qquad \: \dfrac{ - 8(5) + 7(3)}{15} [/tex]
Step 2 : Multiplying -8 with 5 and 7 with 3 :
[tex]\quad \: \dashrightarrow \qquad \: \dfrac{ - 40 + 21}{15} [/tex]
Step 3 : Solving -40 and 21 :
[tex]\quad \: \dashrightarrow \qquad \: \red{\underline{ \boxed{ \frak{\dfrac{ - 19}{15} }}}} \quad \bigstar[/tex]
Henceforth , -19/15 is the answer .#Keep LearningYou are given a sequence of n songs where the ith song is l minutes long. You want to place all of the songs on an ordered series of CDs (e.g. CD 1, CD 2, CD 3,... ,CD k) where each CD can hold m minutes. Furthermore, (1) The songs must be recorded in the given order, song 1, song 2,..., song n. (2) All songs must be included. (3) No song may be split across CDs. Your goal is to determine how to place them on the CDs as to minimize the number of CDs needed. Give the most efficient algorithm you can to find an optimal solution for this problem, prove the algorithm is correct and analyze the time complexity
Answer:
This can be done by a greedy solution. The algorithm does the following:
Put song 1 on CD1.
For song 1, if there's space left on the present CD, then put the song on the present CD. If not, use a replacement CD.
If there are not any CDs left, output "no solution".
Explanation:
The main thing is prove the correctness, do that by the "greedy stays ahead argument". For the primary song, the greedy solution is perfect trivially.
Now, let the optimal solution match the greedy solution upto song i. Then, if the present CD has space and optimal solution puts song (i+1) on an equivalent CD, then the greedy and optimal match, hence greedy is not any worse than the optimal.Else, optimal puts song (i + 1) on subsequent CD. Consider an answer during which only song (i + 1) is moved to the present CD and zip else is modified. Clearly this is often another valid solution and no worse than the optimal, hence greedy is not any worse than the optimal solution during this case either. This proves the correctness of the algorithm. As for every song, there are constantly many operations to try to do, the complexity is O(n).
For each of the following memory accesses indicate if it will be a cache hit or miss when carried out in sequence as listed. Also, give the value of a read if it can be inferred from the information in the cache.
Operation Address Hit? Read value (or unknown)
Read 0x834
Write 0x 836
Read 0xFFD
Answer:
Explanation:
Operation Address Hit? Read Value
Read 0x834 No Unknown
Write 0x836 Yes (not applicable)
Read 0xFFD Yes CO
Base conversion. Perform the following conversion (you must have to show the steps to get any credit.
3DF16 = ?
Base to be converted to was not included but we would assume conversion to base 10(decimal)
Answer and Explanation:
The 3DF in base 16 is a hex number so we need to convert to its equivalent binary/base 2 form:
We therefore each digit of given hex number 3DF in base 16 to equivalent binary, 4 digits each.
3 = 0011
D = 1101
F = 1111
We then arrange the binary numbers in order
3DF base 16 = 1111011111 in base 2
We then convert to base 10 =
= 1x2^9+1x2^8+1x2^7+1x2^6+0x2^5+1x2^4+1x2^3+1x2^2+1×2^1+1×2^0
= 991 in base 10
The purpose of the five-entity minimum, six-entity maximum is to establish a relatively small baseline for you to keep the scope of your database project constrained.
a. True
b. False
How did the military in the early 1900s move resources?
engines.
In the early 1900s, military moved their resources to distant locations with the help of
Answer:
In the early 1900s, military moved their resources to distant locations with the help of trains, ships, and, to a lesser extent, horse-drawn wagons. This was so because at that time airplanes did not yet exist, capable of transporting inputs to any part of the world in a very short period of time. Therefore, inputs and resources were brought by sea and, if impossible, through land, using railways or highways.
