[Java]_ch14.2_執行緒的生命週期

[Java]_ch14.2_執行緒的生命週期

package YPU;

class CTest implements Runnable{

String id;

public CTest(String id){

this.id=id;

}

@Override

public void run() {

for(int i=1;i<=4;i++){

int Timer=(int)(Math.random()*1000);

try {

Thread.sleep(Timer);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

System.out.println(id+" is running...Timer="+Timer+" 當前執行緒:"+Thread.currentThread().getName());

}

}



}

public class A14 {



public static void main(String[] args) {

CTest dog=new CTest("dog");

CTest cat=new CTest("cat");

Thread t1=new Thread(dog,"狗執行緒");

Thread t2=new Thread(cat,"貓執行緒");

t1.start();

try {

t1.join();

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

t2.start();

try {

t2.join();

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

int a=155,b=9;

System.out.println(a+"/"+b+"="+((float)a/b));

System.out.println("主程式結束....");

}



}



/*

 class CTest extends Thread{

String id;

public CTest(String id){

this.id=id;

}

public void run(){

for(int i=1;i<=4;i++){

for(int j=1;j<=900000000;j++);

System.out.println(id+" is running...");

}

}

}

public class A14 {



public static void main(String[] args) {

CTest dog=new CTest("dog");

CTest cat=new CTest("cat");

dog.start();

cat.start();

}



}

 */