Object,Class and Inheritance

📘 Object, Class & Inheritance in C#

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🔹 Object

Object is basically used to bridge a communication between class body and main body.
Objects are always created inside the main body.

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🔹 Syntax

className objName = new className();
objName.function(); // it could be any function inside the class

• new → new keyword is known as Memory allocation operator

• dot (.) → Member access operator used to access functions

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🔹 Example

class Program
{
    public void display(int a1)
    {
        Console.WriteLine("I am a function ");
    }

    static void Main(string[] args)
    {
        int a;
        Program p1 = new Program();
        p1.display();
        Console.ReadKey();
    }
}

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🔹 Class

Class is defined as the collection of data members and member functions.

• Data members → all the variables inside the class

• Member functions → all the functions

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🔹 Inheritance

Inheritance is the reusability of class.

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🔹 Types of Classes

1. Base Class (top class of the program)

2. Derived Class

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🔹 Rules of Inheritance

1. Derived class accesses information to base class

2. Base class cannot access information to derived class

3. Always last class's object is created (important)

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