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Write a Java program to create a deadlock in Java and fix it?

Sumit Rawal answered on August 28, 2023 Popularity 3/10 Helpfulness 1/10

answer Write a Java program to create a deadlock in Java and fix it?

Write a Java program to create a deadlock in Java and fix it?

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public class DeadlockExample {
    public static void main(String[] args) {
        final String resource1 = "Resource 1";
        final String resource2 = "Resource 2";

        Thread thread1 = new Thread(() -> {
            synchronized (resource1) {
                System.out.println("Thread 1: Holding resource 1...");
                try { Thread.sleep(100); }
                catch (InterruptedException e) {}
                System.out.println("Thread 1: Waiting for resource 2...");
                synchronized (resource2) {
                    System.out.println("Thread 1: Acquired resource 2!");
                }
            }
        });

        Thread thread2 = new Thread(() -> {
            synchronized (resource2) {
                System.out.println("Thread 2: Holding resource 2...");
                try { Thread.sleep(100); }
                catch (InterruptedException e) {}
                System.out.println("Thread 2: Waiting for resource 1...");
                synchronized (resource1) {
                    System.out.println("Thread 2: Acquired resource 1!");
                }
            }
        });

        thread1.start();
        thread2.start();
    }
}
public class DeadlockFixExample {
    public static void main(String[] args) {
        final String resource1 = "Resource 1";
        final String resource2 = "Resource 2";

        Thread thread1 = new Thread(() -> {
            synchronized (resource1) {
                System.out.println("Thread 1: Holding resource 1...");
                try { Thread.sleep(100); }
                catch (InterruptedException e) {}
                System.out.println("Thread 1: Waiting for resource 2...");
                synchronized (resource2) {
                    System.out.println("Thread 1: Acquired resource 2!");
                }
            }
        });

        Thread thread2 = new Thread(() -> {
            synchronized (resource1) {
                System.out.println("Thread 2: Holding resource 1...");
                try { Thread.sleep(100); }
                catch (InterruptedException e) {}
                System.out.println("Thread 2: Waiting for resource 2...");
                synchronized (resource2) {
                    System.out.println("Thread 2: Acquired resource 2!");
                }
            }
        });

        thread1.start();
        thread2.start();
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: deadlock java

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Contributed on Aug 28 2023

Sumit Rawal

0 Answers Avg Quality 2/10

Write a Java program to create a deadlock in Java and fix it?

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