Introduction All of us are working hard to crack the interview in a dream company of ours. We are preparing for the interviews, practicing coding questions, and putting in our hundred percent. One important topic we should be well versed ...
Introduction A linked list is a linear data structure that consists of nodes. Each Node contains a data field and a pointer to the next Node. In Linked List, unlike arrays, elements are not stored at contiguous memory locations but ...
Introduction Java is one of the most popular object-oriented programming languages. Every Java program must be enclosed inside a java class. Classes in Java are usually made up of data members and methods. The topic of methods is a vast ...
Introduction Java is an object-oriented programming language. Everything in Java is an object, all the programs, codes, and data reside within classes and objects. Inheritance, Polymorphism, Encapsulation, Abstraction, classes, and objects are few important concepts of Object-Oriented Programming. OOPs is ...
Introduction Deleting, inserting, searching, and popping are some basic operations done in the stack data structure. There are a whole lot of problems available with these operations. For example, Inserting element at the bottom of a stack. Problem Statement Given ...
Table of Contents Introduction The Naive Approach Algorithm Implementation of the Naive Approach The Optimized Approach Algorithm Implementation of the Optimized Approach Frequently Asked Questions Key Takeaways Introduction Let’s imagine a scenario in which we have a rotated sorted array ...
Introduction Before diving into the problem, let’s understand the concept behind the sorted and rotated array for a clear vision. Unlike the standard arrays, the elements are stored in ascending or descending order in a sorted array. For example: We ...
Introduction Object-Oriented Programming (OOP) is one of the main concepts in the programming world. The concept of OOP is tested in interviews, and hence it becomes essential to know the concepts of OOPs like Inheritance, Abstraction, Encapsulation, and Polymorphism thoroughly. ...
Introduction Welcome Back, Ninja! Today this article will discuss one of the most frequently asked questions in Google, Apple, Amazon – “The Celebrity Problem”. Let’s start with the problem statement and work our way to the solution. Problem Statement There ...
Introduction In most programming languages, we can create user-defined data types on top of inbuilt data types to accommodate data constituted with various data types. Enum is one such example of user-defined data types in Java. It was introduced in ...
