5 Computer -- OOP Concept

Define the term object and class.

1 Answers

Objects:

An object is any entity, thing or organization that exits in real world. t consists of two fundamentals characteristics: its attributes and behaviors. For example: a dog is an object having attributes such as color, weight, age, etc. and behaviors such as barking, wagging tail, etc.

Class:

A class is the collection of similar objects. It is defined as the template or prototype to define the common attributes and behavior for all the objects of the class.

Define the term inheritance and polymorphism.

Inheritance:

Inheritance is the process by which objects of one class acquire the properties of objects of another class. It supports the concept of hierarchical classification.

Polymorphism:

Polymorphismrefers to the way of operating the same operator in different ways and different method or purpose. Operator overloading and the operation overloading are the examples of polymorphism. For example ‘+’ operator can be used for arithmetic operation and string concatenation both.

Describe the object-oriented concept in programming.

Object oriented programming is a programming paradigm that was developed to overcome the drawbacks and limitations of particularly procedure oriented programming. The major need for developing such languages was to manage the ever-increasing size and complexity of programs.

Differentiate between procedural and object-oriented language.

Basis of comparision

Procedure

Object Oriented

Emphasis

Emphasis is on doing things

Emphasis is on data rather than procedures.

Debugging

Debugging process is very difficult

Debugging process is very easy

Secure

It is less secure

It is more secure

Memory

It needs very less memory

It needs more memory

Examples

C, FORTAN

C++,JAVA,NET

Even though I enabled UTF-8 in project of Java in Eclipse? My console doesn't show unicode characters. It just prints "?????????????". How to fix this?

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