Java interview questions

I have written a lot of java interview questions and this is index posts for all java interview questions. I will keep adding more interview questions to this post. Table of ContentsCore JavaCore java interview …

Core Java tutorial

This is the index post for Core Java tutorial for beginners as well as for experienced programmer. I have written Core Java tutorial from basic to advanced topics.It will definitely help you learn Java in …

Freestyle Projects in Jenkins

Freestyle means improvised or unrestricted. A freestyle project in Jenkins is a project that spans multiple operations. It can be a build, a script run, or even a pipeline. According to the official Jenkins wiki, …

Segment Tree in java

In this post, we will see about Segment Tree in java. Table of ContentsProblemSolutionApproach – I:Approach – II:Efficient Approach :Construction :Range Sum Query :Updation: Problem Consider an Array of Integers, int arr = {a1, a2, …

Java add to array

In this post, we will see how to add elements to the array. Using Apache’s common lang library You can use varargs add method to add elements to array dynamically. Here are the few add …

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