多线程售票示例

package *;

class Ticket implements Runnable{
	static int number=20;//买票
	@Override
	public void run() {
		synchronized(this){//代码块：同步块，加锁，控制线程顺序
				System.out.println("开始");
				System.out.println(Thread.currentThread().getName()+"买了第"+number+"张票");
				number--;
				System.out.println("结束");
		}
	}
}
class Ticket2 implements Runnable{
	static int number=30;
	@Override
	public void run() {
		// TODO Auto-generated method stub
		System.out.println("开始");
		System.out.println(Thread.currentThread().getName()+"买了第"+number+"张票");
		number--;
		System.out.println("结束");
	}
	
}
public class Er {
	public static void main(String[] args) {
		Ticket ticket=new Ticket();
		new Thread(ticket,"t1").start();
		new Thread(ticket,"t2").start();
		new Thread(ticket,"t3").start();
		new Thread(ticket,"t4").start();
		new Thread(ticket,"t5").start();
		new Thread(ticket,"t6").start();
		
		Ticket2 ticket2=new Ticket2();
		new Thread(ticket2,"t1").start();
		new Thread(ticket2,"t2").start();
		new Thread(ticket2,"t3").start();
	}
}

　多线程示例