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In Java, is it possible to lock an object for exclusive use by a thread?

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Pragya Keshap answered on February 4, 2023 Popularity 1/10 Helpfulness 1/10

answer In Java, is it possible to lock an object for exclusive use by a thread?

In Java, is it possible to lock an object for exclusive use by a thread?

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Yes. We can use synchronized block to lock an object. The locked

object is inaccessible to any other thread. Only the thread that has

locked it can access it.

class Geek implements Runnable {
    public void run() { Lock(); }
 
    public void Lock()
    {
        System.out.println(
            Thread.currentThread().getName());
        synchronized (Geek.class)
        {
            System.out.println(
                "in block "
                + Thread.currentThread().getName());
            System.out.println(
                "in block "
                + Thread.currentThread().getName()
                + " end");
        }
    }
 
    public static void main(String[] args)
    {
        Geek g1 = new Geek();
        Thread t1 = new Thread(g1);
        Thread t2 = new Thread(g1);
        Geek g2 = new Geek();
        Thread t3 = new Thread(g2);
        t1.setName("t1");
        t2.setName("t2");
        t3.setName("t3");
        t1.start();
        t2.start();
        t3.start();
    }
}

https://www.geeksforgeeks.org/object-level-class-level-lock-java/

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java object

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Contributed on Feb 04 2023

Pragya Keshap

0 Answers Avg Quality 2/10

In Java, is it possible to lock an object for exclusive use by a thread?

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