java’s key features include platform independence, object-oriented design, simplicity, security, robustness, portability, and multithreading. These characteristics make Java one of the most widely used programming languages in the world.
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Last updated
Thu, 20-Nov-2025
????️ Basics of Java
Platform-independent: Java programs run on any system with JVM (Java Virtual Machine).Object-Oriented: Supports concepts like classes, objects, inheritance, polymorphism, abstraction, and encapsulation.
Simple & Secure: Designed to eliminate complex features of C++ (like pointers) and includes strong security features.
Robust: Has strong memory management, exception handling, and type checking.
Multithreaded: Supports concurrent execution of two or more parts of a program.
???? Key Features
Compiled & Interpreted: Java code is compiled into bytecode, then interpreted by JVM.
Automatic Garbage Collection: Manages memory by removing unused objects.
Rich API: Provides libraries for networking, data structures, GUI, and more.
Portable: "Write once, run anywhere" principle.
???? Core Concepts
Object: Instance of a class.
Inheritance: Mechanism to acquire properties of another class.
Polymorphism: Ability to take many forms (method overloading & overriding).
Encapsulation: Wrapping data and methods together.
Abstraction: Hiding implementation details and showing only functionality.
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