Interview

Hibernate is most popular Object relational Mapping (ORM) framework and if you have used hibernate and has good experience on it, then you may face good hibernate interview questions. I am sharing some important hibernate interview questions here. 1. What is ORM? ORM stands for Object Relational mapping. It is programming paradigm which is used […]

Introduction In this post we will look into the most commonly asked Interview questions related to Java. We will take a look at the most common topics in Java for interviews and provide the answer to the questions in detail with examples to help you ace your next interview. We recommend following this post step […]

Runnable and Callable interface both are used in the multithreading environment.Callable is available in java.util.concurrent.Callable package and Runnable in java.lang.Thread. Difference between Runnable and Callable interface in java Runnable was introduced in java 1.0 version While Callable is an extended version of Runnable and introduced in java 1.5 to address the limitation of Runnable. Runnable […]

In this post, we will see how to print numbers using multiple threads in java.It is similar to printing odd-even numbers using two threads in java. Problem You are given 3 threads. You need to print sequence using these 3 threads.You need to print in natural order up to MAX. For example: Let’s say you […]

In this post, we will see 5 SOLID Principles in Java. Robert C. Martin gave five objected oriented design principles, and the acronym S.O.L.I.D is used for it. Each letter of this acronym talks about principles in Java. When you use all the principles of S.O.L.I.D in a combined manner, it becomes easier for you […]

Core In this post, we are going to see Java interview questions for experienced. These are the most asked interview questions for freshers(0-3 years experienced). This question list will help you to crack java interview. I have already shared detailed answer over here before, you might find it helpful as well. I would like to […]

In this post, we will see Java interview questions for 5 to 6 years experience. When you have 5 years of experience as java developer, you need to have a good understanding of collections, multithreading concepts. If you are looking for the below queries then this post will help you as well. Java interview questions […]

In this post, we will see about Parallel Stream in java. Java Parallel Stream introduction Java 8 introduces the concept of parallel stream to do parallel processing. As we have more number of cpu cores nowadays due to cheap hardware costs, parallel processing can be used to perform operation faster. Let’s understand with help of […]

In this post, we will see the difference between map and flatMap in java.I have already covered Stream’s map and flatMap methods  in previous articles. As you might know, Stream’s map and flatMap method both can be applied on Stream<T> and return Stream<R> as output. The actual difference is, map operation produces one output value […]