Java Program to create multiple JButton with ActionListener


In this program, You will learn how to create multiple JButton with ActionListener in Java.


JButton jb1, jb2

public void actionPerformed(ActionEvent e) { }


Example: How to create multiple JButton with ActionListener in Java

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

class Test extends JFrame implements ActionListener {

    JButton jb1, jb2;
    JTextField jt;

    Test() {

        jt = new JTextField();
        jt.setBounds(90, 50, 150, 30);
        add(jt);

        jb1 = new JButton("USA");
        jb1.setBounds(50, 200, 100, 30);
        add(jb1);

        jb2 = new JButton("CHINA");
        jb2.setBounds(180, 200, 100, 30);
        add(jb2);

        jb1.addActionListener(this);
        jb2.addActionListener(this);

        setLayout(null);
        setSize(400, 400);
        setVisible(true);

    }

    public void actionPerformed(ActionEvent e) {

        if (e.getSource().equals(jb1)) {
            jt.setText("USA");
        } else if (e.getSource().equals(jb2)) {
            jt.setText("CHINA");
        }
    }

    public static void main(String args[]) {
        Test t = new Test();
    }
}

Output:

Java JButton