Page 1 | Programming Tutorials Blog | Learn Java, Spring & More

Composition vs Inheritance in Java – When to Prefer Composition

Learn the difference between composition and inheritance in Java, their use cases, best practices, and why composition is often preferred for flexible design.

Java Composition Oop Principles Java Object Oriented Design Design Patterns Java Best Practices Core Java Tutorial Code Reuse Java Composition Vs Inheritance Java Inheritance Prefer Composition Over Inheritance

Coupling and Cohesion in Java – Why They Matter for Clean Code

Learn coupling and cohesion in Java, their importance in clean code, real-world examples, best practices, anti-patterns, and how they impact software design.

Low Coupling Software Design Principles Maintainable Code Cohesion In Java Coupling In Java Java Architecture Java Best Practices High Cohesion Core Java Tutorial Java Clean Code

Exception Propagation in Java – How Exceptions Bubble Up the Call Stack

Learn how exception propagation works in Java, how exceptions bubble up the call stack, best practices, common mistakes, and real-world use cases.

Java Try Catch Java Exception Propagation Exception Handling Java Best Practices Java Error Handling Core Java Tutorial Call Stack Custom Exceptions Throws Keyword Stack Trace

Custom Exceptions in Java – Creating Your Own Checked and Unchecked Exceptions

Learn how to create custom checked and unchecked exceptions in Java, when to use them, common pitfalls, best practices, and real-world use cases.

Checked Exceptions User Defined Exceptions Java Custom Exceptions Java Best Practices Java Error Handling Core Java Tutorial Exception Hierarchy Throw Vs Throws Unchecked Exceptions Java Programming

Enum vs Constants in Java – When to Use and Why

Understand the difference between enums and constants in Java, when to use each, performance impacts, and best practices for clean, maintainable code

Java Enums Vs Constants Java Type Safety Enum Advantages Enum Fields Methods Java Performance Java Coding Standards Core Java Tutorial Static Final Constants Constants Vs Enums Java Enum Best Practices

Enums in Java – Enum Basics, Enum with Fields and Methods

Learn Java enums in depth: basics, enums with fields and methods, real-world use cases, performance tips, best practices, and common mistakes to avoid

Enum Use Cases Enum Vs Constants Enum With Fields Enum Performance Java Enum Examples Enum Best Practices Java Enums Core Java Tutorial Enum Methods Java Enum Tutorial

Autoboxing and Unboxing in Java – Conversions Between Primitives and Objects

Learn how Java handles autoboxing and unboxing to convert between primitives and wrapper objects automatically, with best practices and performance tips.

Java Autoboxing Wrapper Classes Java Performance Primitives Vs Objects Java Best Practices Java Memory Management Core Java Tutorial Java Unboxing Java Type Conversion Integer Double Boolean

Wrapper Classes in Java – Integer, Double, Boolean, and More

Learn everything about Java Wrapper Classes like Integer, Double, and Boolean. Understand autoboxing, unboxing, performance tips, and best practices.

Java Autoboxing Primitive Vs Object Java Performance Boolean Class Integer Class Type Conversion Java Best Practices Core Java Tutorial Java Wrapper Classes Double Class

Shallow vs Deep Copy in Java – Cloning Objects Properly

Learn the difference between shallow and deep copy in Java, how to clone objects properly, avoid pitfalls, and implement efficient copying strategies.

Deep Copy Java Serialization Clone Shallow Copy Java Mutable Objects Copy Constructor Immutable Objects Object Cloning Java Best Practices Java Clone Method Java Memory Management

Java Heap vs Stack Memory – Variables, Objects, and Method Calls

Learn the difference between Java heap and stack memory, how variables, objects, and method calls are stored, performance tips, and best practices.

Java Memory Management Java Performance Tuning Java Objects Java Variables Heap Memory Leak Stack Overflow JVM Memory Java Heap Vs Stack Method Call Stack Memory Allocation In Java

Garbage Collection in Java – How It Works, finalize(), and Best Practices

Learn how Java Garbage Collection works, the role of finalize(), types of collectors, performance tips, and best practices for memory management in Java

Java Garbage Collection Java Programming JVM Memory Management Automatic Memory Cleanup Heap Management Garbage Collector Types Java GC Tuning Java Memory Leak JVM Performance Finalize Method

java-object-class-methods-equals-hashcode-tostring-clone-finalize

Java Object Class Methods: equals, hashCode, toString, clone, and finalize Explained

Learn Java Object class methods including equals, hashCode, toString, clone, and finalize. Includes syntax, use cases, best practices, and interview questions.

HashCode Java Core Java Object Oriented Programming ToString Java Finalize Java Clone Method Java Java Tutorial Equals Method Java Java Object Class Java Interview Questions

final-keyword-java-variables-methods-classes

final Keyword in Java: Variables, Methods, and Classes Explained with Examples

Learn the final keyword in Java for variables, methods, and classes. Understand syntax, use cases, best practices, performance, and interview questions with examples

Final Variables Core Java OOP Best Practices Final Classes Java Final Keyword Immutability In Java Final Methods Java Tutorial Constants In Java Java Interview Questions

interfaces-java-default-static-methods-multiple-inheritance

Interfaces in Java: Default Methods, Static Methods, and Multiple Inheritance

Learn Java interfaces with default methods, static methods, and multiple inheritance. Includes syntax, real-world examples, best practices, and interview questions

Java Interfaces Static Methods Multiple Inheritance Core Java Default Methods Java Best Practices Java Tutorial Interface Example OOP Concepts Java Interview Questions

abstract-classes-methods-java-when-why-use

Abstract Classes and Methods in Java: When and Why to Use Them

Learn abstract classes and methods in Java with examples. Understand when and why to use them, best practices, and interview questions for real-world scenarios

Core Java Abstraction In Java Abstract Vs Interface Java Abstract Classes Java Best Practices Java Tutorial OOP Concepts Abstract Methods Code Reuse Java Interview Questions

polymorphism-java-compile-time-runtime-method-overloading-overriding

Polymorphism in Java: Compile-Time vs Runtime, Method Overloading and Overriding Explained

Learn polymorphism in Java, including compile-time and runtime polymorphism, method overloading vs overriding, best practices, and interview questions with examples

Compile Time Polymorphism Core Java Polymorphism Examples Method Overriding Runtime Polymorphism Java Polymorphism Method Overloading Java Tutorial OOP Concepts Java Interview Questions

super-keyword-java-parent-constructors-methods

super Keyword in Java: Calling Parent Constructors and Methods Explained

Learn the super keyword in Java for calling parent constructors and methods. Understand syntax, use cases, best practices, and interview questions with examples

Parent Methods Core Java Inheritance In Java Constructor Chaining Best Practices Method Overriding Java Tutorial Parent Constructors Java Super Keyword Java Interview Questions

inheritance-java-extends-method-overriding

Inheritance in Java: extends Keyword and Method Overriding Explained with Examples

Learn inheritance in Java with extends keyword and method overriding. Understand syntax, use cases, best practices, and interview questions with real-world examples.

Core Java Superclass Subclass Extends Keyword Method Overriding Java Inheritance Polymorphism Java Tutorial OOP Concepts Code Reuse Java Interview Questions

encapsulation-java-getters-setters-data-hiding

Encapsulation in Java: Getters, Setters, and Data Hiding Explained

Learn encapsulation in Java with getters, setters, and data hiding. Understand syntax, best practices, real-world examples, and interview questions with code.

Java Encapsulation Data Hiding Core Java Encapsulation Example Access Control Getters Setters Java Best Practices Java Tutorial OOP Concepts Java Interview Questions

access-modifiers-java-public-private-protected-default

Access Modifiers in Java: public, private, protected, and default Explained

Learn Java access modifiers - public, private, protected, and default. Understand their usage, scope, best practices, and interview questions with examples

Java Security Code Access Control Core Java Java Best Practices Java Access Modifiers Public Private Protected Default Java Tutorial OOP Concepts Encapsulation In Java Java Interview Questions

All Java Tutorials