OOP stands for object-oriented programming. It is a programming paradigm that revolves around the object rather than function and procedure.
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Object-Oriented Programming
Java Backend Development: Zero to Hero
Object-Oriented Programming
Overview
Object-Oriented Programming (OOP) in Java
OOP stands for object-oriented programming. It is a programming paradigm that revolves around the object rather than function and procedure. In other words, it is an approach for developing applications that emphasize objects.
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Understanding Constructors in Java
Constructors are like methods even though they never have a return type & can’t return any value. They can have all the access levels, and they are also called non-static initializers, which are used to initialize an object & can’t be static.
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The this() statement in Java
The this() statement is used to invoke one constructor from another within the same class. It is primarily used for constructor chaining, allowing code reuse and reducing redundancy in constructor definitions.
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Understanding Initialization Block in Java
Instance Initialization block is the block that runs whenever the object is created. Useful when a class has multiple constructors and some common tasks need to be executed for each constructor.
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What is Encapsulation in Java?
Encapsulation is a mechanism in object-oriented programming that wraps data and the functions that operate on it into a single unit. It allows access and modification of private data members of the class through getters and setters.
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What is Abstraction in Java?
Abstraction in object-oriented programming hides the internal implementation while exposing only the essential details. In Java, abstraction is achieved using abstract classes and interfaces.
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What is Interface in Java
An interface is similar to a class but is declared using the interface keyword and contains only public static methods. It enables 100% abstraction.
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