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21 February, 16:41

4.2.3: Basic while loop expression. Write a while loop that prints userNum divided by 2 (integer division) until reaching 1. Follow each number by a space. Example output for userNum = 40: 20 10 5 2 1 Note: These activities may test code with different test values. This activity will perform four tests, with userNum = 40, then with userNum = 2, then with userNum = 0, then with userNum = - 1. See "How to Use zyBooks". Also note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds, and report "Program end never reached." The system doesn't print the test case that caused the reported message.

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  1. 21 February, 18:25
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    import java. io.*;

    import java. util. Scanner;

    class divide {

    public static void main (String[] args) {

    Scanner num=new Scanner (System. in); //scanner object.

    int userNum=num. nextInt ();

    while (userNum>1) / /while loop.

    {

    userNum/=2; //dividing the userNum.

    System. out. print (userNum+" "); //printing the userNum.

    }

    }

    }

    Input:-

    40

    Output:-

    20 10 5 2 1

    Input:-

    2

    Output:-

    1

    Input:-

    0

    Output:-

    No Output

    Input:-

    -1

    Output:-

    No Output.

    Explanation:

    In the program While loop is used. In the while loop it divides the userNum by 2 in each iteration and prints the value of userNum. The inputs and corresponding outputs are written in the answer.
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