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Thread: Help with While loop to continuously divide

  1. #1
    Junior Member
    Join Date
    Nov 2012
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    Default Help with While loop to continuously divide

    Hello, I'm working on a program that will accept a positive number typed by user and then tell you how many times that number can be divided by two before it reaches a number less than 1. If a negative number is entered by the user it should tell them it is invalid. This is what I have so far, but the loop isn't behaving like I need it to, not sure what's wrong. Any suggestions would be greatly appreciated.

    package project6a;
    import java.util.Scanner;
    public class Bits {
    	 * @param args
    	public static void main(String[] args) {
    		// TODO Auto-generated method stub
    		Scanner input = new Scanner (System.in);
    		System.out.println("Enter a positive number: ");
    		int userNumber = input.nextInt();
    		int count = 0;
    		int tempNum = userNumber / 2;
    		while (tempNum > 1){	
    			tempNum = tempNum / 2;	
    			System.out.println("The number " + userNumber + " is divisible by two " + count + " times");
    		if (userNumber < 0)

  2. #2
    Super Moderator curmudgeon's Avatar
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    Aug 2012
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    Thanked 139 Times in 134 Posts

    Default Re: Help with While loop to continuously divide

    The while loop must contain all the behaviors that need to be repeated, and that includes getting user input, checking input, and warning if input is bad (negative). Your while loop doesn't have all these things inside it.

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