Interview

In this post, we will see top Java technical interview asked in the Core Java interview.I have covered a lot of interview question on Java programming. Here is list of other java interview question you might find useful. Core java interview questions Java Collections interview questions Java String interview questions OOPs interview questions in java […]

In this post, we will some important interview questions specifically on Java 8. Java has changed a lot over years and Java 8 has introduced many new features which you need to know when you are preparing for Java interview.  Here is a list of most asked Java 8 interview questions. 1)  What are […]

In this post, we will see top 15 Spring Boot interview questions with answers.If you want to read more about Spring boot, you can go through Spring boot tutorial. If you are looking for below queries then this post will help you as well. Spring boot interview questions for 3 years experience Spring boot interview […]

In this tutorial, we will see Java interview programs for logic building. These java programs will help students to crack Java interview. Here is the list of Top 10 Java interview programs for logic building. Question 1: Check if number is odd or even? Answer: It is a very basic question. You need to check […]

In this post, we will see about Java ExecutorCompletionService example. ExecutorCompletionService class implements CompletionService. This class returns Future object in completion order. Why you may need to use ExecutorCompletionService: Let’s understand with the help of scenario: Let’s say you have 5 tasks, you submit it to the executors and you want to perform some operation as soon […]

In this tutorial, we will see top 10 Java interview questions. If you can solve these questions, it will help you to understand java programming better.You can also go through top 50 core java interview questions and answers. Question 1: What will be the output of below program: [crayon-6767cc7d41d4a352948353/] Question 2: Guess the output of below […]

In this tutorial, we will see about Java FutureTask example. FutureTask class has been introduced in JDK 5 with Executor Framework. FutureTask class is the concrete implementation of the Future object and provides methods for start and cancel the task.It also provides method to see if the computation is done or not. We can query […]

In this post, we will see about CyclicBarrier in java. CyclicBarrier was introduced in Java 5 with other concurrency utils such as CountDownLatch, ConcurrentHashMap and BlockingQueue. CyclicBarrier is synchronized aid which allows set of threads to wait for each other at common barrier points.It is called cyclic because it can be reused once waiting threads […]

In this tutorial, we will see ReentrantReadWriteLock Example. ReentrantReadWriteLock supports semantics of ReentrantLock and also ReadWriteLock. ReadWriteLock has two locks, one for read and one for write. Request for read lock from multiple threads can be acquired if there is no write request. If there is a write request, no other thread will be able to […]