在同一个类中执行同步和非同步方法

Question

我在一个类中有两个方法，一个是同步的，另一个是非同步的。当我用两个不同的线程调用这些方法时，我看到执行变得串行不并行。

我很困惑，根据理论，r.processSomething（）不应该等待r.doSomething（）来完成它的执行。

如果有人对同时执行两种方法（同步和非同步）有所了解。请分享。

class LockObjectDemo{

    public static void main(String[] args){

        SharedResource r = new SharedResource();

        MyThread t1 = new MyThread(r);
        t1.start();

        MyThread t2 = new MyThread(r);
        t2.start();

    }
}


class MyThread extends Thread{
    private SharedResource r ;

    MyThread(SharedResource r){
        this.r = r;
    }

    public void run() {     
        try {
            r.doSomething(); // Only after completing this method , the other thread enters into the next method which is not locked
            r.processSomething();           
        } catch(Exception ex){
            System.out.println(ex);
        }

    }
}

class SharedResource{

    public void doSomething() throws Exception{
        synchronized(this){ 
            System.out.println("Doing Something -> "+Thread.currentThread().getName());
            Thread.sleep(5000);
            System.out.println("Done Something->"+Thread.currentThread().getName());
        }
    }

    public void processSomething() throws Exception{
        System.out.println("Processing Something -> "+Thread.currentThread().getName());
        Thread.sleep(1000);
        System.out.println("Done Processing->"+Thread.currentThread().getName());
    }
}

Answer 1

另一答案