The Set interface is a collection that cannot contain duplicate elements. It models the mathematical set abstraction and is used to represent sets like below Cards comprising a poker hand Courses making up the schedule of a student The processes running… Read More!
How to check if array contains a given value ? This is an important interview question and frequently used operation during development. Below are the 5 ways to check that. Note the time complexity in the output for all the… Read More!
The Collection interface of Java’s Collections Framework is the root of the collection hierarchy and it is the least common denominator that all collections implement i.e., every collection object is a type of Collection interface. It is used to pass… Read More!
What is Collection ? A “collection” object sometimes called a container is simply an object that groups multiple elements into a single unit. Collections are used to store, retrieve, manipulate, and communicate aggregate data. Another meaning for “Collection” is it’s an… Read More!
Given an unsorted array as an input, the goal is to find least common element or lest frequent element or least repeating element in the array. Let’s solve this problem using the following methods i.e., Method 1: Sorting and Linear Traversal and Method… Read More!
