DeadLockSolvedExample.java

package com.examplehub.basics.thread;

public class DeadLockSolvedExample {
  public Object resourceA = new Object();
  public Object resourceB = new Object();

  public static void main(String[] args) {
    DeadLockSolvedExample deadLockExample = new DeadLockSolvedExample();
    Runnable runnableA =
        new Runnable() {
          @Override
          public void run() {
            synchronized (deadLockExample.resourceA) {
              System.out.println(Thread.currentThread().getName() + "get resourceA");
            }
            try {
              Thread.sleep(1000);
            } catch (InterruptedException e) {
              e.printStackTrace();
            }
            System.out.println(Thread.currentThread().getName() + " is trying to get resourceB");
            synchronized (deadLockExample.resourceB) {
              System.out.println(Thread.currentThread().getName() + "get resourceB");
            }
          }
        };

    Runnable runnableB =
        new Runnable() {
          @Override
          public void run() {
            synchronized (deadLockExample.resourceB) {
              System.out.println(Thread.currentThread().getName() + "get resourceB");
            }
            try {
              Thread.sleep(1000);
            } catch (InterruptedException e) {
              e.printStackTrace();
            }
            System.out.println(Thread.currentThread().getName() + " is trying to get resourceA");
            synchronized (deadLockExample.resourceA) {
              System.out.println(Thread.currentThread().getName() + "get resourceA");
            }
          }
        };

    new Thread(runnableA).start();
    new Thread(runnableB).start();
  }
}