How to Generate Random Numbers in Java between Range - Example Tutorial

In software development and programming world we often needs to generate random numbers, some time random integers in a range e.g. 1 to 100 ...

Difference between Abstract class vs Interface in Java and When to use them

When to use interface and abstract class is one of the most popular object oriented design questions and almost always asked in Java, C# and...

How to convert List of Integers to int array in Java - Coding Tips

So, you have a List of Integers and you want to convert them into int array? Yes you read it write, not on Integer array but int array . Th...

10 Hibernate Interview Questions and Answers for Java J2EE Programmers

Hibernate Interview Questions are asked on Java J2EE Interviews, mostly for web based enterprise application development role. Success and a...

Java Mistake 3 - Using "==" instead of equals() to compare Objects in Java

In this part of Java programming mistakes, we will take a look on another common pattern, where programmers tend to use "==" oper...

Java Program to Find Sum of Digits in a Number using Recursion - Interview Question

Recently this question to asked was one of my reader, which inspired me to write this tutorial. There was usual check to solve this problem ...

How to Find Runtime of a Process in UNIX and Linux

So you checked your process is running in Linux operating system and it's running find, by using ps command. But now you want to know, ...

Eclipse No Java Virtual Machine was found Windows JRE JDK 64 32 bit Error

One of my reader was installing Eclipse in his Windows 7 x86 machine and emailed me about this error " A java Runtime Environment (JRE)...