關於Java中多線程死結的程式碼範例

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("if locka");synchronized(MyLock.lockb){System.out.println("if lockb");}}}}else{while(true){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 DeadLockDemo{public static void main(String[] args){Thread t1 = new Thread(new Test(true));Thread t2 = new Thread(new Test(false));t1.start();t2.start();}}