本帖最后由 zhoubinjian 于 2016-4-4 03:47 编辑
class Test implements Runnable
{ private boolean flag;
Test(boolean flag)
{
this.flag=flag;
}
public void run()
{
if(flag)
{
synchronized(MyClock.obja)
{ System.out.println("if---a");
synchronized(MyClock.objb)
{
System.out.println("if---b");
}
}
}
else
{
synchronized(MyClock.objb)
{ System.out.println("else---b");
synchronized(MyClock.obja)
{
System.out.println("else---a");
}
}
}
}
}
class MyClock
{
static Object obja=new Object();
static Object objb=new Object();
}
class Demo
{
public static void main(String[] args)
{
Thread t1=new Thread(new Test(true));
Thread t2=new Thread(new Test(false));
t1.start();
t2.start();
}
} |
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