import javax.swing.*;
import java.awt.*;
import java.util.Date;

public class Ex8_32_陈孝均 {
    public static void main(String args[]){
        JFrame jf = new JFrame("显示时间");
        JTextField jt1 = new JTextField(20);
        JTextField jt2 = new JTextField(20);
        Target t = new Target(jf,jt1,jt2);
        Thread showtime = new Thread(t);
        showtime.start();
    }
}
class Target implements Runnable{
    JFrame jf;
    JTextField jt1;
    JTextField jt2;
    JTextArea ja1 = new JTextArea("当前时间：");
    String ja11,ja22;
    JTextArea ja2 = new JTextArea("剩余时间：");
    public Target(JFrame jf,JTextField jt,JTextField jt2){
        this.jf = jf;
        this.jt1 = jt;
        this.jt2 = jt2;
        init();
    }
    public void init(){
        jf.setLayout(new FlowLayout());
        jf.add(ja1);
        jf.add(jt1);
        jf.add(ja2);
        jf.add(jt2);
        jf.setBounds(20,20,325,100);
        jf.setVisible(true);
        jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
    public void run(){
        try {
            int time = 300;
            System.out.println("2班32号陈孝均：");
            while (true) {
                Thread.sleep(1000);
                Date date = new Date();
                ja11 = String.valueOf(date.getHours())+":"+String.valueOf(date.getMinutes())+":"+String.valueOf(date.getSeconds());
                jt1.setText(ja11);
                Integer mm = time / 60/60%60;
                Integer ss = time /60%60;
                Integer ms = time%60;
                if(time == 300){
                    ja22 = "00"+":"+"0"+ss.toString()+":"+"0"+ms.toString();
                }else {
                    ja22 = "00" + ":" + "0" + ss.toString() + ":" + ms.toString();
                }
                jt2.setText(ja22);
                time--;
            }
        }catch(Exception e){
            System.out.println(e.getMessage());
        }
    }
}