DesToBin.java

import java.util.Scanner;

// main class DesToBin
public class DesToBin {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int des, a;
		Konversi angka = new Konversi();
    		//get input from user
		Scanner input = new Scanner(System.in);
		System.out.print("Masukkan Angka : ");
    		//assigned the input into des variable
		des = input.nextInt();
    		// print out the input
		System.out.println("Bilangan Desimalnya : " + des);
    		//print out the result
		System.out.print("Konversi Binernya : ");
		angka.desimalkebiner(des);
    		//print out
		System.out.println();
	}

}

// class for converting decimal to binary
class Konversi {
  	//public method for conversion with int param
	public void desimalkebiner(int a) {
		if (a > 1) {
			desimalkebiner(a / 2);
		}
    		//print out the result
		System.out.print(a % 2);
	}
}