Java

ActionListener Event Source In Java ActionPerformed Method1 min read

May 22, 2022

Java Code:


import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class JavaEventSourceExample extends JFrame implements ActionListener {

	private JButton button1 = new JButton("Click Me!");
	private int clickCount = 0;

	public static void main(String[] args) {
		new JavaEventSourceExample();
	}

	public JavaEventSourceExample() {
		this.setSize(200, 100);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setTitle("I'm Listening");

		JPanel panel1 = new JPanel();
		button1.addActionListener(this);
		panel1.add(button1);
		this.add(panel1);

		this.setVisible(true);
	}

	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == button1) {
			clickCount++;
			if (clickCount == 1)
				button1.setText("I've been clicked!");
			else
				button1.setText("I've been clicked" + clickCount + " times!");
		}
	}
}

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class JavaEventSourceExample extends JFrame implements ActionListener {

private JButton button1 = new JButton("Click Me!");

private int clickCount = 0;

public static void main(String[] args) {

new JavaEventSourceExample();

}

public JavaEventSourceExample() {

this.setSize(200, 100);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setTitle("I'm Listening");

JPanel panel1 = new JPanel();

button1.addActionListener(this);

panel1.add(button1);

this.add(panel1);

this.setVisible(true);

}

public void actionPerformed(ActionEvent e) {

if (e.getSource() == button1) {

clickCount++;

if (clickCount == 1)

button1.setText("I've been clicked!");

else

button1.setText("I've been clicked" + clickCount + " times!");

}

Output:

ActionListener Event Source In Java ActionPerformed Method1 min read

Add comment

Cancel reply

An introduction to event handling in Java Programming

How do You Generate a Exception in Java

How do you pause and resume threads in Java Programming

How to Dynamically Dispatch a Method in Java Programming

How to read and write QR code using java

How to make a calculator in java using swing

Posts

How to Easily Retrieve Data from an XML File in C#

How to format a string as negative currency in C#

How to Create virtual constructors and Destructors in C++

Working with Multiline Strings in Rust: Best Practices and Examples

Why assertions are used ? How they are useful in software testing in Java ?

ActionListener Event Source In Java ActionPerformed Method1 min read

Add comment

You may also like

Posts