ArrayList in Java: Internal Structure, Performance, and Use Cases
Learn how ArrayList works in Java: internal structure, performance trade-offs, and use cases with clear code examples
Collections Framework in Java: What You Need to Know
Learn the Java Collections Framework: key interfaces, implementations, and examples to manage and manipulate groups of objects efficiently.
Understand the Factory Method Pattern in Java
Learn how the Factory Method Pattern in Java enables flexible object creation, promotes clean code, and supports the Open/Closed Principle.
Override Methods and Use Polymorphism in Java
Master method overriding and polymorphism in Java through clear examples like Animal and Payment systems. Learn to write flexible, clean code
Verify Object Type Before Casting
Learn to verify object type before casting in Java to prevent ClassCastException and ensure safe, stable, and readable generic code.
Generics: Basics and Use Cases in Java
Master Java Generics with this guide: learn syntax, use cases, and limitations through clear examples and practical tips for safe coding.
Single Responsibility Principle in Java
Learn how to apply the Single Responsibility Principle in Java with real-world examples. Write cleaner, modular, and testable code.
Open Closed Principle In Java
Learn the Open/Closed Principle in Java. Build code that’s easy to extend and maintain without modifying existing functionality.
Liskov Substitution Principle In Java
Understand the Liskov Substitution Principle in Java with clear examples. Learn how to build reliable and extensible class hierarchies.
Interface Segregation Principle In Java
Apply the Interface Segregation Principle in Java to build cleaner, modular code. Avoid bloated interfaces and improve testability.