Quick summary In this tutorial, we will write a java program that will count the occurrences of a..

An Object is said to be immutable if its state can not change after modification. For instance, String..

In java, three techniques will break the singleton design pattern. In this tutorial, we will explore these three..

The Singleton design pattern restricts to one instance. If we try to create a new instance, it only..

A queue is a linear data structure that works on the First in First out principle. A element..

The stack is a linear data structure that follows the LIFO (last-in-last-out) principle. In the stack, an item..