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Thread: While Loop to divide by 2 continiously

  1. #1
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    Default While Loop to divide by 2 continiously

    I'm working on a program that takes a number that is entered, then tells you how many times that number can be divided by 2 before it becomes less that 1. If a user enters a negative number it should tell the user that their input was invalid. This is what I have so far, but it isn't taking the count and increasing it every time. So what is wrong with my loop?

    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 >= 0){	
    			tempNum = tempNum / 2;	
    			count++;
     
    			System.out.println("The number " + userNumber + " is divisible by two " + count + " times");
    		}
     
    		if (userNumber < 0)
    			System.out.println("Invalid");	
     
     
    		input.close();		
    	}
    }


  2. #2
    Super Moderator curmudgeon's Avatar
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    Default Re: While Loop to divide by 2 continiously

    Duplicate post -- closed.

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