Interview

In this tutorial, we will learn about Interface Segregation Principle.It is one of the SOLID principles. In simple term, Interface Segregation Principle dictates that client should not be forced to implement the methods which it won’t be able to use.You can always throw UnsupportedOperationException from the method which you don’t want to use but it […]

In this tutorial, we will learn about Open Closed Design Principle in Java.Open closed principle is one of the SOLID principles. Open Closed Design Principle dictates that “software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification”. This definition was provided by Bertrand Meyer. Once we have written the class and […]

In this tutorial, we will learn about single responsibility principle in java.It is one of SOLID principles and simplest design principle as well. Single responsibility principle dictates that there should be only one reason to change the class.If you have more than one reason to change the class then refactor the class into multiple classes according […]

In this post, we will see how to reverse a number in java. Here is simple program to reverse a number. [crayon-661e60d4c3229908207813/] Output: Enter a Number : 4567 Reverse of the number : 7654 Let’s just observe values of variables at the end of each iteration. Iteration 0: number = 4567,remainder = 0, reversedNumber = […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see about linear search in java. Linear search is simple sequential search in which target element is searched one by one in the array. If element is found in the array then index […]

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 […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see Dijkstra algorithm for find shortest path from source to all other vertices. Problem You will be given graph with weight for each edge,source vertex and you need to find minimum distance from […]

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 […]