Java - 8/12/09

Admin

MyThread.java

class MyThread{
public static void main(String[] args){
Thread t;
t = Thread.currentThread();
System.out.println("Ten hien tai cua Thread :" +t);
t.setName("TTTTT");
t.setPriority(10);
System.out.println("Ten moi cua Thread : " +t);
System.out.println("Do uu tien cao nhat : "+Thread.MAX_PRIORITY);
System.out.println("Do uu tien cao nhat : "+Thread.MIN_PRIORITY);
try{
for(int i=1;i<=10;i++){
System.out.println("Gia tri : " +i);
Thread.sleep(1000);
}
}
catch(Exception iex){
System.out.println(iex.getMessage());
}
}
}

ChildThread.java

class ChildThread extends Thread{
Thread t;
public ChildThread(){
t = new Thread("Thread con");
System.out.println("Thread con :" +t);
}
public void run(){
System.out.println("So luong dang hoat dong :" +Thread.activeCount());
try{
for(int i=1;i<=20;i++){
System.out.println("Gia tri Thread con : " +i);
Thread.sleep(500);
}
}
catch(InterruptedException e){
System.out.println("Loi tu Thread con");
}
System.out.println("Dang thoat Thread con");
}
}
class MainThread{
public static void main(String[] args){
ChildThread ct = new ChildThread();
ct.start();
Thread th = Thread.currentThread();
try{
System.out.println("Main Thread :" +th);
for(int i=1;i<=5;i++){
System.out.println("Gia tri tu main Thread :" +i);
Thread.sleep(1000);
}
}
catch(InterruptedException e){
System.out.println("loi tu Thread con");
}
System.out.println("Hoan tat !");
}
}

MyThread1.java

class ChildThread implements Runnable{
String name;
Thread t;
ChildThread(String threadname){
name = threadname;
t = new Thread(this.name);
System.out.println("Thread moi :" +t);
t.start();
}
public void run(){
System.out.println("So luong dang hoat dong :" +Thread.activeCount());
try{
for(int i=1;i<=5;i++){
System.out.println("Gia tri Thread con : " +i);
Thread.sleep(200);
}
}
catch(InterruptedException e){
System.out.println(name + "interrupted.");
}
System.out.println(name + "Dang thoat.");
}
}
class MainThread1{
public static void main(String[] args){
ChildThread t1 = new ChildThread("T1");
ChildThread t2 = new ChildThread("T2");
ChildThread t3 = new ChildThread("T3");
System.out.println("Thread 1 is alive :"+t1.t.isAlive());
System.out.println("Thread 2 is alive :"+t2.t.isAlive());
System.out.println("Thread 3 is alive :"+t3.t.isAlive());
try{
System.out.println("Main thread cho cac Thread con hoan thanh.");
t1.t.join();
t2.t.join();
t3.t.join();
System.out.println("Thread con hoat dong xong");
}
catch(InterruptedException e){
System.out.println("Main Thread Interrupted");
}
System.out.println("Thread 1 is alive :"+t1.t.isAlive());
System.out.println("Thread 2 is alive :"+t2.t.isAlive());
System.out.println("Thread 3 is alive :"+t3.t.isAlive());
try{
for(int i = 0;i<10;i++){
System.out.println("Main thread : " +i);
}
}
catch(Exception e){
System.out.println("Error");
}
System.out.println("Thoat");
}
}