Java Basic(63)-JButton Final Program

import javax.swing.JFrame;

class apples{

public static void main(String[] args){

Gui go = new Gui();

go.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

go.setSize(300, 200);

go.setVisible(true);

}

}

加入這些在 Gui.java:

HandlerClass handler = new HandlerClass();

reg.addActionListener(handler);

custom.addActionListener(handler);

}

private class HandlerClass implements ActionListener{

public void actionPerformed(ActionEvent event){

JOptionPane.showMessageDialog(null, String.format("%s", event.getActionCommand()));

}

這是運行時的結果: