每日收货

package Calculation;

import javax.swing.;
import java.awt.;
import java.util.Timer;
import java.util.TimerTask;

public class TimeFrame extends JPanel {
private JLabel timeLabel; // 显示时间
private Timer timer; // 计时器
private int seconds; // 秒数

public TimeFrame() {seconds = 0;timeLabel = new JLabel("用时：0秒", SwingConstants.CENTER);timeLabel.setFont(new Font("宋体", Font.BOLD, 16));add(timeLabel);
}// 启动计时器
public void startTimer() {timer = new Timer();timer.scheduleAtFixedRate(new TimerTask() {@Overridepublic void run() {seconds++;// 更新时间显示（格式：分:秒）int minutes = seconds / 60;int secs = seconds % 60;timeLabel.setText(String.format("用时：%d分%d秒", minutes, secs));}}, 1000, 1000); // 1秒后开始，每1秒执行一次
}// 停止计时器
public void stopTimer() {if (timer != null) {timer.cancel();}
}

}