public?class?Resource?{
String?name;
String?sex;
boolean?flag?=?false;
int?x?=?0;
public?synchronized?void?set(String?name,?String?sex){
while?(flag)
try{
this.wait();
}catch(InterruptedException?e){}
this.name?=?name;
this.sex?=?sex;
flag?=?true;
this.notifyAll();
x?=?(x+1)%2;
}
public?synchronized?void?out(){
while?(!flag)
try{
this.wait();
}catch(InterruptedException?e){}
System.out.println(name+"...."+sex);
flag?=?false;
this.notifyAll();
}
}
-----------------------------------------------------------------------------------------
public?class?Input?implements?Runnable?{
Resource?r;
int?x?=?0;
Input(Resource?r){
this.r?=?r;
}
@Override
public?void?run()?{
while?(true){
if?(r.x?==?0)
r.set("mike",?"man");
else
r.set("麗麗",?"女女女女女女女女");
}
}
}
--------------------------------
public?class?Output?implements?Runnable?{
Resource?r;
Output(Resource?r)
{
this.r?=?r;
}
@Override
public?void?run()?{
while(true)
{
r.out();
}
}
}
----------------------
public?class?ResourceDemo?{
public?static?void?main(String[]?args)?{
Resource?r?=?new?Resource();
Input?in?=?new?Input(r);
Output?out?=?new?Output(r);
Thread?t1?=?new?Thread(in);
Thread?t3?=?new?Thread(in);
Thread?t5?=?new?Thread(in);
Thread?t6?=?new?Thread(in);
Thread?t7?=?new?Thread(in);
Thread?t8?=?new?Thread(in);
Thread?t9?=?new?Thread(in);
Thread?t10?=?new?Thread(in);
Thread?t11?=?new?Thread(in);
Thread?t12?=?new?Thread(in);
Thread?t2?=?new?Thread(out);
Thread?t4?=?new?Thread(out);
t1.start();
t2.start();
t3.start();
t4.start();
t5.start();
t6.start();
t7.start();
t8.start();
t9.start();
t10.start();
t11.start();
t12.start();
}
}運行結果：我想要的結果是麗麗 ? 和 ?Mike ? 交替出現，為什么會出現這種 ?重復出現麗麗 ? 又重復出現Mike ?的現象呢？ ? ?求大神分析一下
一個java多線程問題
我要變大神大神大大神
2017-01-01 14:52:04
變成自問自答了
分析了一下午，發現問題就是出自這里。