Java总结之线程

标签：io   ar   使用   java   for   sp   数据   on   art   

public class TestJoin extends Thread{
	public static void main(String[] args) {
		MyThread t1 = new MyThread("t1");
		t1.start();
		try {t1.join();}
		catch (InterruptedException e) {}
		for(int i=1;i<=10;i++) {
			System.out.println("i am main thread");
		}
	}
}
class MyThread extends Thread {
	MyThread(String s) {super(s);}
	public void run() {
		for(int i=1;i<=10;i++) {
			System.out.println("i am "+getName());
			try {sleep(1000);}
			catch (InterruptedException e) {return;}
		}
	}
}

public class TestYield {
	public static void main(String[] args) {
		MyThread t1 = new MyThread("t1");
		MyThread t2 = new MyThread("t2");
		t1.start(); t2.start();
	}
}
class MyThread extends Thread {
	MyThread(String s) {super(s);}
	public void run() {
		for(int i=1;i<=100;i++) {
			System.out.println(getName()+": "+i);
			if(i%10==0) {
				yield();
			}
		}
	}
}

public class TestPriority {
	public static void main(String[] args) {
		Thread t1 = new Thread(new T1());
		Thread t2 = new Thread(new T2());
		t1.setPriority(Thread.NORM_PRIORITY + 3);
		t1.start();
		t2.start();
	}
}
class T1 implements Runnable {
	public void run() {
		for(int i=0;i<100;i++) {
			System.out.println("T1: "+i);
		}
	}
}
class T2 implements Runnable {
	public void run() {
		for(int i=0;i<100;i++) {
			System.out.println("------T2: "+i);
		}
	}
}

public class TestSync implements Runnable {
	Timer timer = new Timer();
	public static void main(String[] args) {
		TestSync test = new TestSync();
		Thread t1 = new Thread(test);
		Thread t2 = new Thread(test);
		t1.setName("t1");
		t2.setName("t2");
		t1.start();
		t2.start();
	}
	public void run() {
		timer.add(Thread.currentThread().getName());
	}
}
class Timer {
	private static int num = 0;
	public synchronized void add(String name) {
		//synchronized (this) {
			num ++;
			try {Thread.sleep(1);}
			catch (InterruptedException e) {}
			System.out.println(name+", 你是第"+num+"个使用timer的线程");
		//}
	}
}

public class TestDeadLock implements Runnable {
	public int flag = 1;
	static Object o1 = new Object(), o2 = new Object();
	public void run() {
		System.out.println("flag=" + flag);
		if(flag == 1) {
			synchronized(o1) {
				try {Thread.sleep(500);}
				catch (Exception e) {
					e.printStackTrace();
				}
				synchronized(o2) {
					System.out.println("1");
				}
			}
		}
		if(flag == 0) {
			synchronized(o2) {
				try {Thread.sleep(500);}
				catch (Exception e) {
					e.printStackTrace();
				}
				synchronized(o1) {
					System.out.println("0");
				}
			}
		}
	}
	public static void main(String[] args) {
		TestDeadLock td1 = new TestDeadLock();
		TestDeadLock td2 = new TestDeadLock();
		td1.flag = 1;
		td2.flag = 0;
		Thread t1 = new Thread(td1);
		Thread t2 = new Thread(td2);
		t1.start();
		t2.start();
	}
}

Java总结之线程

标签：io   ar   使用   java   for   sp   数据   on   art   

原文地址：http://blog.csdn.net/lasolmi/article/details/40212161