补发《超级迷宫》站立会议八

import java.awt.FlowLayout;

import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

public class Pragram {

static int seconds = 150;

private TimeThread tt = null;

private boolean ttFlag = false;

private void init() {

final JLabel tip = new JLabel();

final JButton start = new JButton("开始");

final JButton end = new JButton("结束");

JFrame f = new JFrame();

f.setLayout(new FlowLayout(5));

f.add(tip);

f.add(start);

f.add(end);

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

f.setVisible(true);

f.setSize(300, 150);

f.setLocationRelativeTo(null);

start.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

start.setEnabled(false);

tip.setFont(new Font("宋体",Font.BOLD,27));

ttFlag = true;

tt = new TimeThread(tip);

tt.start();

}

});

end.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

start.setEnabled(true);

tip.setText("");

Pragram.seconds = 150;

ttFlag = false;

}

});

}

/**

* @param args

*/

public static void main(String[] args) {

new Pragram().init();

}

class TimeThread extends Thread {

private JLabel tip;

TimeThread(JLabel tip) {

this.tip = tip;

}

@Override

public void run() {

int seconds = Pragram.seconds;

tip.setText(seconds+"");

while (seconds-- > 0 && ttFlag) {

tip.setText(seconds+"");

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

};

}