How to Change JButton Text on Click

In this tutorial, we are going to see how to change JButton text on click. JButton is a subclass of AbstractButton class and it can be used to add platform-independent buttons to a Java Swing application. JButton can generate an ActionListener interface when the user clicks on a button, it can also generate MouseListener and KeyListener interfaces.

By default, we can create a JButton with a text and also change the text of a JButton, it will call the actionPerformed() method of the ActionListener interface and set an updated text in a button by calling setText(‘New text’) method of JButton class.

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Java Program to Change JButton Text on Click:

import javax.swing.*;
import java.awt.event.*;

public class JButtonExample
{
  public static void main(String[] args) 
  {
    JFrame frame = new JFrame("ActionListener Example");
    JButton btn = new JButton("Click here");
    btn.setBounds(70,80,100,30);
    //Change button text on click
    btn.addActionListener(new ActionListener() {
       public void actionPerformed(ActionEvent ae) {
                      btn.setText("OK");
       }
    });
    frame.add(btn);
    frame.setSize(250,250);
    frame.setLayout(null);
    frame.setVisible(true);  
  }
}

Output:

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