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Data Abstraction

Data Abstraction in Java Definition: Data abstraction is a fundamental concept in object-oriented programming that involves exposing only the essential features of an object while hiding the complex implementation details. It allows users to interact with an object through a simplified interface without needing to understand the intricacies of its implementation.

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Give an example to explain Data Abstraction.
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Relationship between Data Hiding and Data Abstraction?

Relationship between Data Hiding and Data Abstraction in Java Data Hiding and Data Abstraction are both important concepts in object-oriented programming, particularly in Java, and they work together to enhance the security and usability of classes.

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In what way Data Hiding is related with Data Abstraction?
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How will you consider ‘Mobile Phone’ a real world object?

Considering 'Mobile Phone' as a Real-World Object In object-oriented programming (OOP), a real-world object can be represented as a class with attributes (data) and methods (behavior). A Mobile Phone can be considered a real-world object with the following characteristics:

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How would you consider a ‘Mobile Phone’ a real-world object?
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What do you understand by: Encapsulation & Data Hiding

a) Encapsulation Encapsulation is a fundamental principle of Object-Oriented Programming (OOP) that involves bundling the data (attributes) and methods (behavior) that operate on that data into a single unit, typically a class. This approach restricts direct access to some of the object's components and can prevent unintended interference and misuse of the internal state. Encapsulation enhances modularity and helps maintain the integrity of the data. b) Data Hiding Data Hiding is a specific a

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What do you understand by:
a) Encapsulation
b) Data Hiding
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Define: An object, A class, Inheritance & Polymorphism

An object is an instance of a class that encapsulates state (attributes) and behaviour (methods). It represents a specific entity with properties and actions. A class is a blueprint for creating objects. It defines the attributes (fields) and behaviours (methods) that the objects created from the class will have. Inheritance is a mechanism where a new class (subclass) can inherit attributes and methods from an existing class (superclass). It promotes code reuse and establishes a hierarchical r

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Define the following with an example each.
a) An object
b) A class
c) Inheritance
d) Polymorphism
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‘Message Passing’

Message Passing in Java refers to the method of communication between objects where one object sends a message to another by invoking its methods. This process allows objects to interact and collaborate while maintaining encapsulation and independence. Key Aspects: Method Invocation: An object communicates by calling methods on another object. Encapsulation: Objects manage their internal state and expose only specific methods for interaction. Loose Coupling: Objects interact without being

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What do you mean by ‘Message Passing’?
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The elements of OOP

Elements of OOP in Java: Class: A blueprint for creating objects that defines the data and behavior (methods) that the objects created from the class will have. Object: An instance of a class that contains state (attributes) and behavior (methods). Objects interact with one another through methods. Method: A function defined in a class that describes the behavior of an object. Methods can manipulate object data and perform operations. Attribute (Field): A variable defined in a class

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What are the elements of OOP?
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Features of OOP?

Features of OOP in Java: Encapsulation: Wrapping data (variables) and methods into a single unit (class) to protect the data and ensure controlled access. Inheritance: A class can inherit properties and methods from another class, enabling code reuse and creating a parent-child relationship. Polymorphism: The ability to use a single interface or method to represent different types or behaviors, often through method overloading or overriding. Abstraction: Hiding complex implementation

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What are the features of OOP?
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OOP’s principles.

Two OOP Principles: Encapsulation: Bundling data and methods inside a class while restricting direct access to some of the object's components to protect data integrity. Inheritance: Allowing a new class to inherit properties and behaviors from an existing class, promoting code reuse and hierarchy.

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Name any two OOP’s principles.
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What is OOP?

OOP (Object-Oriented Programming) is a programming paradigm based on the use of objects that encapsulate data and behavior. Key principles include encapsulation, inheritance, polymorphism, and abstraction. Two OOP Languages in the Java ecosystem: Java: A widely used, fully object-oriented programming language. Kotlin: A modern, interoperable language with full support for OOP principles.

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What is OOP? Name Two OOP languages.
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