Thread Test 2

public class ThreadTest2 {

//스레드로 실행이 가능한 클래스 만들기

//2. Runnable을 상속받아 만들기

public ThreadTest2() {}

public static void main(String[] args) {

ClockEx3 ce = new ClockEx3(1, 1);

//Runnable 상속받아 생성된 스레드 클레스는 Thread 객체를 만들어야 한다.

Thread tt1 = new Thread(ce);

tt1.start();

ClockEx3 ce2 = new ClockEx3(400, 1);

Thread tt2 = new Thread(ce2);

tt2.start();

ClockEx3 ce3 = new ClockEx3(1, 200);

Thread tt3 = new Thread(ce3);

tt3.start();

}

}

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화면2.

import java.awt.Font;

import java.util.Calendar;

import javax.swing.JFrame;

import javax.swing.JLabel;

//Runnable 상속, run메소드 오버라이딩

public class ClockEx3 extends JFrame implements Runnable{

JLabel timeLbl = new JLabel();

Font fnt = new Font("Serif", Font.BOLD, 100);

public ClockEx3(){}

public ClockEx3(int x, int y){

add(timeLbl, "Center");

timeLbl.setFont(fnt);

setTime();

setBounds(x, y, 400, 200);

// pack();

setVisible(true);

}

public void run(){

while(true){

try{Thread.sleep(1000);}catch(Exception e){}

setTime();

}

}

public void setTime(){

Calendar cal = Calendar.getInstance();

int hour = cal.get(Calendar.HOUR_OF_DAY);

int minute = cal.get(Calendar.MINUTE);

int second = cal.get(Calendar.SECOND);

String timeStr = "";

if(hour<10){

timeStr="0"+hour+":";

}else{

timeStr=hour+":";

}

if(minute<10){

timeStr+="0"+minute+":";

}else{

timeStr+=minute+":";

}

if(second<10){

timeStr+="0"+second;

}else{

timeStr+=second;

}

timeLbl.setText(timeStr);

}

// public static void main(String[] args) {

// new ClockEx();

//

// }

}