Core Java interview questions and answers will help you in preparing for the interviews. Whether you are a fresher or experienced professional, the questions will help you in getting a competitive ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Here are the most important concepts developers must know when they size Java arrays and deal ...

In Java, arrays are useful data structures that store elements of the same data type sequentially in memory. Frequently, developers need to determine the size of an array for various reasons like ...

Given an array of length N and an integer x, you need to find and return the first index of integer x present in the array. Return -1 if it is not present in the array. First index means, the index of ...

One of the reasons developers love Java is that the JVM performs garbage collection (GC) for them. One of the reasons system admins hate the JVM is the unpredictable nature of Java GC. A Java GC ...

I know how to allocate a bytbuffer for the image, so thats not the problem. But how do i allocate a buffer for that output to be able to successfully feed the input and output buffer to the ...

In the last exciting installment of “Let’s Build a Simple Android App”… We went through the process of creating a basic app that asked a question and let you give a response. It was cooler than it ...

Java has a "Random" class that lets you generate a random number you use to implement calculations in your Java source code. You use this library to generate a random number and insert the number into ...