Decimal to Binary

Given a Decimal value the task is to convert it to Binary value.

To convert Decimal value to Binary value we divide the number by 2 and take the remainder as the Binary bit. Then the quotient obtained is again divided by 2 and the remainder is taken as next Binary bit. This process is repeated until the number becomes 0.

Example 1: Consider a Decimal value 57.

Now if we read the Binary bits of the adjacent table from bottom to top we will obtain the Binary equivalent of 57 that is 111001.

import java.util.*;
public class DecimalBinary
{
    public static void main(String args[])
    {
        int r=0,dec=0;
        String bin="";
        Scanner sc=new Scanner(System.in);
        System.out.print("Decimal Value: ");
        dec=sc.nextInt();
        while(dec>0)
        {
            r=dec%2;
            bin=r+bin;
            dec=dec/2;
        }
        System.out.println("Binary Value: "+bin);
    }
}