Class having the structure like c++ and java in c#.net and microsoft adding some functionality for class. the structure of class is below.

class class_name

{

//here we can declare members.

public | private | protected | protected internal member_name;

class_name()// this called constructor.

{

//here we can assign values for members.

member_name=values;

}

//here we can declare member function.

public | private | protected | protected internal function_name(arguments)

{

//here we can write the functionality of this function.

}

}

the above examples having public | private | protected | protected internal these are called access modifiers.

constraints of class

1. Constructor name and class name should be same.

2. Constructor should not have a return type.

3.By default protection level is private for constructor.

4.Class name should starts with alphabets.