Java

ActionListener Inner Class To Handle Event In Java1 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 JavaInnerClassActionListner extends JFrame {

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

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

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

		ClickListener cl = new ClickListener();
		JPanel panel1 = new JPanel();

		button1.addActionListener(cl);
		panel1.add(button1);
		this.add(panel1);

		this.setVisible(true);
	}

	private class ClickListener implements ActionListener {
		private int clickCount = 0;

		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 JavaInnerClassActionListner extends JFrame {

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

public static void main(String[] args) {

new JavaInnerClassActionListner();

}

public JavaInnerClassActionListner() {

this.setSize(200, 100);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

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

ClickListener cl = new ClickListener();

JPanel panel1 = new JPanel();

button1.addActionListener(cl);

panel1.add(button1);

this.add(panel1);

this.setVisible(true);

}

private class ClickListener implements ActionListener {

private int clickCount = 0;

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 Inner Class To Handle Event In Java1 min read

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ActionListener Inner Class To Handle Event In Java1 min read

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