control.java

JAVA实现经典停等协议的多线程方法,这个简单的但是经典的方法是多线程编程的入门材料

package waitANDnotify;

public class Control {
	int n;
	boolean valueSet;
	
	synchronized int get(){
		if(valueSet){
			try{
				wait();
			}catch (InterruptedException e){
				System.out.println("InterRuption occur.");
			}
		}
			System.out.println("Got: "+n);
			valueSet=false;
			notify();
			return n;
		}
	    
	synchronized void put(int n){
		if(valueSet){
			try{
				wait();
			}catch(InterruptedException e){
				System.out.println("InterRuption occur.");
			}
		}
		    this.n=n;
		    System.out.println("Put: "+n);
		    valueSet=false;
		    notify();
	}
}