Declaring and Throwing Exceptions in Java: A Practical Guide
When to Throw Exception vs declare throws in Java. Practical rules, examples, and best practices for robust, readable, testable APIs
Exception Hierarchy in Java: Checked, Unchecked, and Errors
Learn the Java Exception Hierarchy, including checked, unchecked, and errors, to handle exceptions effectively in your code.
Exception in Java: How It Affects Program Flow
Learn how exception in Java influences program flow. Understand try-catch behavior, execution order, and best practices for handling errors.
How to Override the toString() Method Properly in Java
Learn why overriding the toString method in Java improves object readability and debugging. A must-know for clean, effective code.
How to Override the hashCode Method Properly in Java
Discover how the hashCode method in Java works, its contract with equals, and why proper overriding is crucial for collections.
How to Override the equals Method Properly in Java
Learn how the equals method in Java works, why to override it, and the difference between Object.equals and Objects.equals.
StringBuilder vs StringBuffer in Java
Compare StringBuilder vs StringBuffer in Java. Learn key differences, performance, thread safety, and best use cases with examples.
StringBuffer in Java: A Complete Guide
Discover how to use StringBuffer in Java for thread-safe string manipulation, with examples, performance tips, and best practices.
StringBuilder in Java: A Complete Guide
Learn how to use StringBuilder in Java for efficient string manipulation, with examples, best practices, and performance tips.
Types of Polymorphism in Java : Compile-time vs Runtime
Explore the two main types of polymorphism in Java—compile-time and runtime—to write flexible, maintainable, and scalable code.