- class Test implements Runnable
- {
- private boolean flag;
- Test(boolean flag)
- {
- this.flag = flag;
- }
- public void run()
- {
- if(flag)
- {
- while(true)
- {
- synchronized(MyLock.locka)
- {
- System.out.println(Thread.currentThread().getName()+"if...");
- }
- synchronized(MyLock.lockb)
- {
- System.out.println(Thread.currentThread().getName()+"if...");
- }
- }
- }
- else
- {
- while(true)
- {
- synchronized(MyLock.lockb)
- {
- System.out.println(Thread.currentThread().getName()+"else...");
- }
- synchronized(MyLock.locka)
- {
- System.out.println(Thread.currentThread().getName()+"else...");
- }
- }
- }
- }
- }
- class MyLock
- {
- public static final Object locka = new Object();
- public static final Object lockb = new Object();
- }
- class DeadlockDemo
- {
- public static void main(String[] args)
- {
- Test a = new Test(true);
- Test b = new Test(false);
- Thread t1 = new Thread(a);
- Thread t2 = new Thread(b);
- t1.start();
- t2.start();
- }
- }
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