双线程轮询打印

静态变量

/**
 * @author luxiangxing
 * @time 2017年5月7日
 * @email [e-mail]
 * @tel [phone]
 */
public class TwoThread implements Runnable {
	private int id;
	static Integer c ;
	private Object o;

	public TwoThread(int id, Object o) {
		this.id = id;
		this.o = o;
	}

	@Override
	public void run() {
		synchronized (o) {
			while (this.c < 1000) {
//				 System.out.println(id+"> "+this.c);
				if (this.c % 2 == id) {
					System.out.println(id + " - " + c++);
					o.notify();
				} else {
					try {
						o.wait();
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			}
		}
	}

	public static void main(String[] args) {
		Object o = new Object();
		TwoThread t1 = new TwoThread(1, o);
		TwoThread t2 = new TwoThread(0, o);
		new Thread(t1).start();
		new Thread(t2).start();
	}
}

 对象方式

/**
 * @author luxiangxing
 * @time 2017年5月7日
 * @email [e-mail]
 * @tel [phone]
 */
public class TwoThread implements Runnable {
	private int id;
	static Integer c ;
	private Object o;
	Num n ;
	public TwoThread(int id, Object o,Num n) {
		this.id = id;
		this.o = o;
		this.n = n;
	}

	@Override
	public void run() {
		synchronized (o) {
			while (this.n.i < 1000) {
//				 System.out.println(id+"> "+this.c);
				if (this.n.i % 2 == id) {
					System.out.println(id + " - " + this.n.i);
					this.n.setI(this.n.i+1);
					o.notify();
				} else {
					try {
						o.wait();
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			}
		}
	}

	public static void main(String[] args) {
		Object o = new Object();
		Num n = new Num(1);
		TwoThread t1 = new TwoThread(1, o,n);
		TwoThread t2 = new TwoThread(0, o,n);
		new Thread(t1).start();
		new Thread(t2).start();
	}
}

class Num{
	int i ; 
	public Num(int i) {
		this.i = i ;
	}
	public void setI(int i) {
		this.i = i;
	}
}