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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

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.

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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

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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

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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.

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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.

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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.

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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.

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Multidimensional Arrays in Java – Declaration, Initialization, and Jagged Arrays Explained

Learn Java multidimensional arrays with examples. Covers declaration, initialization, jagged arrays, memory implications, and best practices for efficient coding.

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