Arshi Saxena articles - 40 total
Mastering SOLID Principles for Java Interviews
The SOLID principles are foundational guidelines for writing maintainable, scalable, and flexible...
Sorting Smarts in Java: TreeSet and TreeMap
In our previous post, we discussed Comparable and Comparator, which are the building blocks for...
Sorting Smarts in Java: Comparable and Comparator
Sorting is a fundamental operation in Java, especially when dealing with collections. Java offers two...
Demystifying hashCode() and equals(): The Backbone of Java Hash Collections
When working with Java's hash-based collections like HashMap and HashSet, the methods hashCode() and...
StringBuilder vs StringBuffer in Java
In Java, when working with mutable strings (strings that can be modified), you may need to choose...
Strings: Understanding Mutability and Immutability
In Java, strings are often manipulated, combined, and stored across applications, so understanding...
Strings: Checking for Palindromes
In this post, we’ll walk through a common interview question—checking if a given string is a...
Strings: Basic Methods in Java-Interview Essentials
Strings are a fundamental part of almost every Java application. Whether you are building complex...
Strings: Garbage Collection and Immutability in Java
In Java, strings play a unique role in memory management due to their immutability and interning...
Strings: String Pool and Memory Management in Java
Understanding how Java handles strings is essential, especially since strings are immutable and...
Exploring Nuances of the Java Scanner Class
The Scanner class in Java is a powerful tool for taking user input. However, it comes with some...
Polymorphism: Decoding Method Overriding in Java
Method Overriding is one of the core concepts of polymorphism in Java, allowing a subclass to provide...
Polymorphism: Decoding Method Overloading in Java
Method overloading is a form of compile-time polymorphism that allows us to define multiple methods...
Abstraction: Abstract Class vs Interface
When designing software in Java, choosing between abstract classes and interfaces can have a big...
Abstraction: Decoding Interfaces in Java
In Java, Interfaces serve as contracts that classes must adhere to. Since an interface only provides...
Abstraction: Decoding Abstract Classes in Java
In this post, we explore Abstract Classes, an essential part of abstraction in Java. We'll build on...
Cracking OOP in Java: A PIE You’ll Want a Slice Of
In this post, we’ll explore the four fundamental pillars of Object-Oriented Programming (OOP) in...
Static Keyword: Overloading, Overriding, and the Role of this and super
This post extends our previous discussions on the static keyword by focusing on the concepts of...
Static Keyword: Accessing Static and Non-Static Members in Methods
In this post, we’ll focus on how methods interact with static and non-static members and why static...
Static Keyword: Decoding Static Variables in Java
Welcome back to the Java Keywords Essentials series! This post is all about static variables—a...
Static Keyword: Decoding Static Blocks in Java
Welcome to the first post in our series on the static keyword in Java! In this series, we’ll break...
Mastering the final Keyword in Java: Constants, Immutability, and More
The final keyword is one of the most fundamental tools for creating constants and ensuring...
Mastering SUPER Keyword in Java: Unlocking Inheritance and Constructor Chaining
In this post, we’ll dive deep into the super keyword and explore how it works in different scenarios....
Mastering THIS Keyword in Java: A Key to Clean and Effective Code
The this keyword in Java serves as a reference to the current object. It enhances code readability...
HashMaps in Action: Tackling a Common Java Interview Challenge
Technical interviews often feature questions that test your understanding of collections, especially...
Exploring HashSet: A Dive into Unordered Collections
Introduction The HashSet class is part of the Java Collections Framework, providing a...
Cracking the Basics of HashMap: Key Concepts for Java Developers
Introduction Understanding the HashMap class is essential for developers, both in...
Arrays vs. ArrayLists: A Must-Know Topic for Java Interviews
When preparing for Java interviews, one common question that often trips up candidates is the...
Understanding ArrayList: Essential Knowledge for Interviews
In this post, we'll explore the basics of the ArrayList in Java, one of the most commonly used...
Understanding Memory Leaks in Java: Common Causes and How to Detect Them
Memory management is a critical aspect of developing efficient applications in Java. A memory leak...