死锁(for learning)

最新推荐文章于 2023-02-23 18:35:27 发布

原创最新推荐文章于 2023-02-23 18:35:27 发布 · 435 阅读

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#thread #string #class

class classA { public classB b; synchronized void methoda() { String name=Thread.currentThread().getName(); System.out.println(name +"entered classA.methoda."); try{ Thread.sleep(1000); }catch(InterruptedException e){} System.out.println(name +"trying to call classB.methodb()"); b.methodb(); } synchronized void methodb() { System.out.println("inside classA.mothedb()."); } } class classB { public classA a; synchronized void methoda() { String name= Thread.currentThread().getName(); System.out.println(name +"entered classB.methoda."); try{ Thread.sleep(1000); }catch(InterruptedException e){} System.out.println(name +"trying to call classA.methodb()"); a.methodb(); } synchronized void methodb(){ System.out.println("inside classB.mothedb()"); } } class DeadLock implements Runnable { classA a=new classA(); classB b=new classB(); DeadLock() { Thread.currentThread().setName("MainThread"); a.b=b; b.a=a; new Thread(this).start(); a.methoda(); System.out.println("back to main thread"); } public void run() { Thread.currentThread().setName("RacingThread"); b.methoda(); System.out.println("back to racing thread"); } public static void main(String args[]) { new DeadLock(); } }