Program to convet a number from decimal to binary.

import java.util.*;
class Conversion
{

    public static void main(String args[])
    {
        int rem,inc=1,sum=0;
        System.out.println("Enter Decimal No.");
        Scanner f=new Scanner(System.in);
        int num=f.nextInt();                                       //input as a decimal no.
        while(num>0)
        {
            rem=num%2;
            num=num/2;
            sum=sum+rem*inc;
            inc*=10;
        }
        System.out.println("Binary no. is "+sum);         //Output as binary no.
    }
}