两个线程循环切换

package com.thread;

/**
 * 创建两个线程，一个线程循环10次，另一个线程100次，两者交替运行50次
 * 即到A线程时，它运行本身循环的10次之后；马上轮到B线程，它则运行本身的100次循环
 * 以此轮换切换线程共50次
 */
public class ThreadTest {
	public static void main(String[] args) {
		
		final Business business=new Business();

		
		//子线程
		new Thread(new Runnable() {
			public void run() {
				for (int i = 0; i < 50; i++) {
					try {
						business.sub(i);
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
			}
		}).start();
		
//----------------------------线程二-------------------------------------------------
		
		//main方法本身是个线程，即线程二运行代码直接放到main方法中
		for (int i = 0; i < 50; i++) {
			try {
				business.main(i);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
	}
}

class Business{
	private boolean isSub=true;//当前运行的方法是sub()
	
	//线程一
	public synchronized void sub(int i) throws InterruptedException {
		while (!isSub) {
			this.wait();
		}
		for (int j = 0; j < 10; j++) {
			System.out.println("sub thread sequence is "+j+" and loop is "+i);
		}
		isSub = false;
		this.notify();
	}
	
	//主线程，即main
	public synchronized void main(int i) throws InterruptedException{
		while (isSub) {
			this.wait();
		}
		for (int j = 0; j < 100; j++) {
			System.out.println("main thread sequence is "+j+" and loop is "+i);
		}
		isSub = true;
		this.notify();
	}
}