Decimal to Binary Converter using Java GUI

Submitted by donbermoy on Monday, May 19, 2014 - 19:23.

In this tutorial, i will teach you how to create a program that converts an inputted decimal number into binary using Java GUI. So, now let's start this tutorial! 1. Open JCreator or NetBeans and make a java program with a file name of decToBinary.java. 2. Import javax.swing package. Hence we will use a GUI (Graphical User Interface) here like the inputting the decimal number.

import javax.swing.*;

3. Initialize your variables in your Main, variable numInput as string and make it as an inputdialogbox. Variable n as integer that will parse the inputted value of numInput. And variable binary as integer that will hold the binary value of our input.

        int n;
        String numInput;
        String binary;
        numInput = JOptionPane.showInputDialog(null, "Enter a number:");
        n = Integer.parseInt(numInput);

4. Compute the equivalent binary value of the inputted decimal number.

 binary  = Integer.toBinaryString(n);

toBinaryString method converts any number into a binary value. 5. Lastly, display the output of the program using JOptionPane.showMessageDialog.

JOptionPane.showMessageDialog(null, "Binary equivalent is: " +binary);

Output: output

Here's the full code of this tutorial:

import javax.swing.*;
 
public class decToBinary {
 
  
    public static void main(String[] args) {
    
    
        int n;
        String numInput;
        String binary;
        numInput = JOptionPane.showInputDialog(null, "Enter a number:");
                n = Integer.parseInt(numInput);
       
         binary  = Integer.toBinaryString(n);
        JOptionPane.showMessageDialog(null, "Binary equivalent is: " +binary);
    }
 
}

Hope this program helps! :) Best Regards, Engr. Lyndon R. Bermoy IT Instructor/System Developer/Android Developer/Freelance Programmer If you have some queries, feel free to contact the number or e-mail below. Mobile: 09488225971 Landline: 826-9296 E-mail:[email protected] Add and Follow me on Facebook: https://www.facebook.com/donzzsky Visit and like my page on Facebook at: https://www.facebook.com/BermzISware

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