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Aleksandr-060686 [28]
2 years ago
11

Square a Number This is a practice programming challenge. Use this screen to explore the programming interface and try the simpl

e challenge below. Nothing you do on this page will be recorded. When you are ready to proceed to your first scored challenge, click "Finish Practicing" above. Programming challenge description: Write a program that squares an integer and prints the result. Input: Your program should read lines from standard input. Each line will contain a positive integer. Output: For each line of input, print to standard output the square of the number. Print out each result on a new line.
Computers and Technology
1 answer:
yan [13]2 years ago
3 0

Answer:

import java.io.*;

public class Main {

  public static void main(String[] args) throws IOException {

      BufferedReader brObject = new BufferedReader(new InputStreamReader(System.in));

      String str;

      while ((str = brObject.readLine()) != null) {

          int number = Integer.parseInt(str);

          System.out.println(number * number);

      }

  }

}

Explanation:

  • Inside the main method, create an object of BufferedReader class to read lines from standard input.
  • Declare a string and run a while loop until it reaches the end of the input.
  • Inside the while loop convert the string into an integer data type.
  • Finally display the output by squaring the number.
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What conclusion can be made about the state of the program when the while loop terminates? Assume answer is a declared and initi
stellarik [79]

<u>Answer:</u>

<em>1. The loop will run unless the value of answer equals to Capital N.</em> The method equals is “case-sensitive” that is lower case letter and upper case letters are considered different. That “a” and “A” means the same to us, but for the method equals it is different and equals method will return false if the case is not matching.

<em>2. a (int)(Math.random() * (upper − lower) ) + lower </em>

Since we need to consider the lower limit value together to get the desired results we need to add the value of lower limit to the multiplied answer.

<em>3. b while(userGuess != secretNumber || userGuess >= lowerLimit && userGuess <= upperLimit)</em>

Here the program is required to check the while loop and exit when user guess the number or we can say the loop should continue until the user guess the number, so that is why we have taken <em>userGuess!=secretNumber. </em>Next the loop should be exited if it is not within the range or we can say that the loop should run only if the guessed number is within the upper and lower limit.<em> That is why we have opted for the condition userGues>=lowerlimit && userGuess<=upperlimit.</em> Why we have taken && as the operator is that, it’s a range of values so && operator best suit for this kind of logical condition.

3 0
2 years ago
Which of the following is considered technology?
nevsk [136]
A. computer
computer because computer is technology and pencil is not and spoon.
8 0
2 years ago
Write MVCTester.java. When the program starts, the initial screen displays a button labeled "add", a blank text area, and a text
Debora [2.8K]

Answer:

Kindly note that, you're to replace "at" with shift 2 as the brainly text editor can't take the symbol

Explanation:

import java.awt.event.*;  

import java.awt.geom.Area;

import javax.swing.*;

class MVCTester implements ActionListener{

JButton b; //button

JTextField t1; //textfiled

JTextArea area; //text area

MVCTester(){

JFrame f=new JFrame("Button Example");

//button

b=new JButton("add");  

b.setBounds(0,0,125,27);  

f.add(b);  

b.addActionListener(this);  

//textfiled

t1=new JTextField();  

t1.setBounds(0,161,125,24);  

f.add(t1);

//textarea

area=new JTextArea();  

area.setBounds(0,28,123,130);  

f.add(area);

area.setColumns (17);

area.setLineWrap (true);

area.setWrapStyleWord (false);

f.setSize(125,225);

f.setLayout(null);  

f.setVisible(true);

}

"at"Override

public void actionPerformed(ActionEvent arg0) {

Control c=new Control(area,t1,b);

}  

}  

class Control {

Control(JTextArea area,JTextField t1,JButton b){

//simple logic getting text of text area adding text of textfiled and setting the text to text area

area.setText(area.getText()+t1.getText()+"\n");

t1.setText("");

}

}

public class Modal{

public static void main(String[] args) {  

MVCTester be=new MVCTester();

}

}

8 0
2 years ago
Read 2 more answers
Complete this truth Table. Write a program that you can enter from the keyboard, a 1 or 0 into three Boolean variables, A,B,C. W
SSSSS [86.1K]

Answer:

Following are the code to this question:

#include<stdio.h>//defining header file

int AND(int x,int y) //defining a method AND that hold two variable in its parameter

{

if(x==1 && y==1)//defining if block to check x and y value is equal to 1

{

return 1;//return value 1

}

else //defining else block

{

   return 0;//return value 0

}

}

int OR(int x,int y)//defining method OR that hold two variable in its parameter

{

if(x==0&&y==0)//defining if block to check x and y value is equal to 1

{

return 0;//return value 0

}

else //defining else block

{

   return 1;//return value 1

}

}

int main()//defining main method

{

int a,b,c;//defining integer variable  

int k=1;//defining integer variable k that holds a value 1

while(k<=8)//defining while loop for 8 time input

{

printf("Please insert 3 numbers in (0 0r 1):\n ");//print message

scanf("%d%d%d", &a, &b, &c);//input value

k++;//increment the value of k by 1

printf("value: %d\n",AND(OR(a,b),c));

}

return 0;

}

Output:

please find the attachment.

Explanation:

In the above-given C language code two methods "AND and OR" is declared, holds two integer variable "x and y" in its parameters, inside the method a conditional it used that can be defined as follows:

  • In the AND method, inside a conditional statement, if block check x and y both value is same that is 1 it will return 1 or it will goto else block in this it will return value 0.      
  • In the OR method, inside a conditional statement, if block check x and y both value is the same, that is 0 it will return 0 or it will goto else block in this it will return value 1.
  • In the main method, four integers "a,b,c, and k" is declared in which variable "a, b, c" is used in the loop for 8 times input values from the user and print method is used to call the method and prints its return values.

8 0
2 years ago
You're the sole IT employee at your company, and you don't know how many users or computers are in your organization. Uh oh! Wha
Neporo4naja [7]

Answer

Directory Services

<u></u>

<u>Definition</u>

It is a type of software that is used to unify and customize the resources available at the network.

<u>Explanation</u>

This software is used to gather the information and addresses of all computers connected on the network.

It is a type of information store, where all the information related to resources (computer) and services of network has been stored. It also gives administrator rights to the single point to manage whole network resources.

This is the reason, Option "D" is the best choice for me as sole IT employ in a company. I will prefer directory services software to gather the information of all computers of organization and manage users in company.  

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2 years ago
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