fwcgex1529的部落格

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

class ATest
{
public static void main(String[] args)
{
JFrame F=new JFrame();
F.setSize(450, 450);

JPanel P=new JPanel();
P.setLayout(new GridLayout(3,3));
JButton button[]=new JButton[10];

for (int i = 0; i < 9; i++){
button[i] = new JButton();
button[i].setSize(50,50);
button[i].setText(Integer.toString(i+1));

P.add(button[i]);
}

F.getContentPane().add(P,BorderLayout.CENTER);
F.setVisible(true);
}
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class ATest extends JFrame implements ActionListener

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

public ATest()
{
JFrame F=new JFrame();
F.setSize(450, 450);

JPanel P=new JPanel();
P.setLayout(new GridLayout(3,3));
JButton button[]=new JButton[10];

for (int i = 0; i < 9; i++){
button[i] = new JButton();
button[i].setSize(50,50);
button[i].setText(Integer.toString(i+1));

button[i].setActionCommand("d1");
button[i].addActionListener(this);

P.add(button[i]);
}
F.getContentPane().add(P,BorderLayout.CENTER);
F.setVisible(true);
}

public void actionPerformed(ActionEvent e) {
String cmd = e.getActionCommand();
if (cmd == "d1") {
System.out.println("Yes....");
}
}

}