java游戏编程学习笔记(一)--获取鼠标点击事件

public class Action1  extends JFrame{
private static final long serialVersionUID = 1L;
static JButton b1 = new JButton("红色");
static JButton b2 = new JButton("黄色");
static JButton b3 = new JButton("蓝色");
static JPanel p = new JPanel();
static JLabel  l = new JLabel("请点击下面按钮");
public Action1(){
super("动作时间");
setBounds(10,20,220,200);
l.setOpaque(true);
l.setBounds(0,0,220,150);
l.setHorizontalAlignment(JLabel.CENTER);
add(l,"Center");
p.add(b1);
p.add(b2);
p.add(b3);
add(p,"South");
b1.addActionListener(new B());
b2.addActionListener(new B());
b3.addActionListener(new B());
setVisible(true);
}
public static void main(String[] args) {
Action1 a = new Action1();
}
}
class B implements ActionListener{

@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == Action1.b1){
Action1.l.setText("按下的是红色的按钮");
Action1.l.setBackground(Color.red);
}else if(e.getSource() == Action1.b2){
Action1.l.setText("按下的是黄色的按钮");
Action1.l.setBackground(Color.yellow);
}else if(e.getSource() == Action1.b3){
Action1.l.setText("按下的是蓝色的按钮");
Action1.l.setBackground(Color.blue);
}
}

}