numberstore1.java

java课件及例程有一些PPT及一些例程

class NumberStore1{
    private int data;
    private boolean haveData;
    public synchronized int getData(){
    	if(haveData == true)
    	    haveData = false;
           return data;	  
    } 
    public synchronized void putData(int value){
        data = value;
        haveData = true;
    }
}