Java Theory Part1

DEFINITIONS(Part-1)

Object: An object is a unique entity of Object Oriented Programming Language, which possesses some state and attributes.

Class: A class is a set of objects. Each object possesses similar state and behavior defined within the same class.

Data Abstraction: Data Abstraction is the act of representing essential features without including the background details.

Encapsulation: The Binding/Wrapping up of data and its functions into a single unit are known as Encapsulation.

Data Hiding: The insulation given to the data, due to which it cannot be accessed directly outside the class premises.

Inheritance: Inheritance is the process of linking and sharing the common properties of objects from two different classes.

Polymorphism: It is the process of using a function more than one purpose, with the same external structure and with the change in the internal structure.

Dynamic Binding: Dynamic binding is the process of linking function call with function Signature during the execution of the program.

OOP: Object Oriented Programming. It is a modular approach, which allows data to be applied stipulated program area. It increases the programmer’s productivity. It gives more Emphasis on the data.

Instance: An Object is said to be an Instance of a class. Each Object shows the same properties described in the class.

Instantiation:  Using the keyword new and creating a space for allocating the object in the dynamic memory is known as Instantiation.

Initialization: It is the process of calling the constructor to initialize the attributes of an object.

Declaration: Using Class as a data type to create a new object of that class.

API: A set of functions and procedures that allow the creation of applications which access the features or data of an operating system, application, or other services.

IDE: An integrated development environment (IDE) or interactive development environment is a software application that provides comprehensive facilities to computer programmers for software development. An IDE normally consists of a source code editor, build automation tools and a debugger.

Attribute: It is the state on which Objects differ. It deals with the contents of an object to make each object distinct. (Belongings of a class)

User Defined Data Type: Class is considered as a User-defined data type. A user can use a class to create a new data type with some certain characteristics and behavior. So a class is called a user-defined data type.

Reusability: The process of adding some essential features to a class without modifying its contents. It can be done by inheritance.

Applet: An Applet is written a program in java language that can be included in an HTML page.

For More Definition coming soon.....

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