class Test implements runnable
{private boolean flag;
Test(boolean flag){
this.flag=flag;
}
public void run()
{if(flag)
{synchronized(Mylock.locka)
{system.out.println("if locka");
{synchronized(Mylock.lockb)
{system.out.println("if lockb");
}}}
else{
synchronized(Mylock.lockb){
system.out.println("else lockb");
synchronized(Mylock.locka){
system.out.println("else locka");
}}}}}
class Mylock{
static Object locka=new Object();
static Object lockb=new Object();
}
class deadlockTest{
public static void main(String[] args){
Thread t1=new Thread(new Test(true));
Thread t2=new Thread(new Tset(false))
t1.start();
t2.start();
}
}
死锁分析:
1.进程推进顺序不当
2.竞争共享资源
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