Category: Concurrency
1. ConcurrentHashMap class The ConcurrentHashMap is very similar to the HashMap class, except that ConcurrentHashMap offers internally maintained concurrency. It means we do not need to have synchronized blocks when accessing its key-value pairs in a multithreaded application. //Initialize ConcurrentHashMap instance ConcurrentHashMap<String, Integer> m = new ConcurrentHashMap<>(); //Print all values stored in ConcurrentHashMap instance for each (Entry<String, Integer> e : m.entrySet()) { system.out.println(e.getKey()+”=”+e.getValue()); } The…
1. Deadlock In Java, a deadlock is a situation where minimum two threads are holding the lock on some different resource, and both are waiting for the other’s resource to complete its task. And, none is able to leave the lock on the resource it is holding. ResolveDeadLockTest.java package thread; public class ResolveDeadLockTest { public static…
