C#,oops concept,method,constructor,polymorphism etc

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Class & object:-

Class:- Class is a blueprint/template.

Class is not real world entity.

Class don't occupy memory.

Object:- Object is instance of Class.

Object is a real world entity.

Object Occupy memory.

Method:-Method is code block that perform particular task or provide a functionality that is why it is also called function.

Code block that contain group of related.

public/private Int,float,string int a, int b

^ ^ ^ <access modifier> (parameter list)

Polymorphism:-

Poly means ---> 'Many'

Morphism ---> 'Form/Behaviors'

There are two types of polymorphism:-

1. Compile time polymorphism/static polymorphism.

--->Compile time ploymorphism achieved using method Overloading.

2. Run time polymorphism/dynamic polymorphism.

--->Run time polymorphism achieved using method Overriding.

Method Overloading:-

According to method overloading class can have multiple methods having same name.

Condition method Overloading:-

1. All the methods should have same name.

2. All the methods should be in same class.

3. But methods should have different parameter.

4. There should be Ineheritance between classes.

Method Overriding:- With method Overriding,we can override the method of parent class with same method of child class.

Condition Method Overriding:-

1. All the method should have same name.

2. All the method should be different.

3. But method should have same parameters.

Constructor:- is automatically execute.

Constructor actually is method.

Properties of Constructor:-

1. Constructor is a method that has the same name sa that of class name.

2. Constructor do not have return type, so rhe can not return values.

3. Access modifier can be used with constructor.

4. Constructor can be overloaded.

5. It invoked when objects get created.

6. It initialize member variables of a class

Types of constructor:-

1. Default Constructor(compile create).

2. User define Constructor.

3. Parameterized Constructor.

Encapsulation:-

-->the meaning of Encapsulation, is "hiding sensitive data"

Encapsulation can be achieved in two steps:

1. Declare the variable of a class as private (data hiding).

2. Provide public setter and getter methods to modify and view the variable values.

C#,oops concept,method,constructor,polymorphism etc

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