Convert decimal to binary Number using java.

Write a program to convert   decimal to binary number.

 

Write java code Convert decimal number to binary number.

 

import java.io.*;

public class decimal2binary {

            public static void main(String[]args)throws IOException  {

                        int num,i=0,k,j;

                        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

                        System.out.print("Enter the decimal number to convert into binary:- ");

                        num=Integer.parseInt(br.readLine());

                        int a[]=new int[20];

                        int b[]=new int[20];

                        while(num>0) {

                                    a[i]=num%2;

                                    i++;

                                    num=num/2;

                        }

                        k=i-1;

                        System.out.print("\n");

                        for(j=0;j<i;j++) {

                                    b[j]=a[k];

                                    System.out.print(b[j]);

                                    k--;

                        }

                                   

                       

            }

 

}