Decimal To Binary Converter in Java

In this short article you will learn how to write a program in Java how to convert decimal value into its binary equivalent the code is very simple and easy to understand for beginners in Java programming.

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Sample Output of Our Program

Program Listing

import java.util.Scanner;

class binary

{

  public static  int decimal_to_binary(int value)

   {

    String Binary_Number;    Binary_Number="";

     while (value != 0) {

       if (Binary_Number.length() % 5 == 0)

           Binary_Number = " " + Binary_Number;

                Binary_Number = (value % 2) + Binary_Number;

            value = value / 2;

      }

            System.out.print(Binary_Number +".");

     return 0;

     }

 public static void main(String args[])

 {

     Scanner in = new Scanner(System.in);

      char a;

  do

    {

    int num1=0;

    System.out.print("\n");

    System.out.println("==============================================");

    System.out.println("||    <<< Decimal To Binary Converter  >>>  ||");

    System.out.println("==============================================");

       System.out.print("\n");

       System.out.print("Enter A Number :=> ");

          num1 = in.nextInt();

       System.out.println("\n");

     System.out.println("=======================");

    System.out.println("||  DISPLAY RESULT   ||");

    System.out.println("=======================");

    System.out.println("\n");

    System.out.print("The binary equivalent of " + num1 + " is ")  ;

    decimal_to_binary(num1);

          System.out.println("\n\n");

          System.out.print("Do you Want To Continue (Y/N) :=> ");

           a=in.next().charAt(0);

   } while(a=='Y'|| a=='y');

          System.out.println("\n");

          System.out.println("\t ===== END OF PROGRAM ======");

         System.out.println("\n");

 }

}

DOWNLOAD SOURCE CODE HERE