Java Program to Convert Binary to Decimal

This is a Java Program to Convert the Given Binary Number into its Equivalent Decimal.

We make a class with two methods one for input and other for conversion and access this by object of this class. We first take the input as Binary from user. We define a method as convert() to convert the user’s input to Decimal.

Here is the source code of the Java Program to Convert the Given Binary Number into its Equivalent Decimal. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

  1. import java.util.Scanner;
  2. class Binary_Decimal
  3.  {
  4.      Scanner scan;
  5.      int num;
  6.      void getVal() 
  7.       {
  8.                   System.out.println("Binary to Decimal");
  9.    	 scan = new Scanner(;
  10. 	 System.out.println("\nEnter the number :");
  11. 	 num = Integer.parseInt(scan.nextLine(), 2);
  12.       }
  13.     void convert() 
  14.       {
  15.                   String decimal = Integer.toString(num);
  16.    	System.out.println("Decimal Value is : " + decimal);
  17.       }
  18. }
  19. class  MainClass 
  20. {
  21.     public static void main(String args[]) 
  22.       {
  23.           Binary_Decimal obj = new Binary_Decimal();
  24.            obj.getVal();
  25.            obj.convert();
  26.       }
  27. }


$ javac
$ java MainClass
Binary to Decimal
Enter the number :
Decimal Value is : 10

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