07/11/02 10:19:13
>>228
実行して出てきたＧＵＩにワロタ。センターに足す動けばいい的例。
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Test extends JFrame {
public Test() {
JButton button = new JButton("Add Label");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent evt) {
add(new JLabel("Hello, world!"));
getContentPane().validate();
}
});
add(button, BorderLayout.SOUTH);
setSize(100, 100);
setLocationRelativeTo(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new Test();
}
});
}
}