Class , Structure & Object

Class:

Class is group of objects that share common properties and relationships.
Class members are private by default.
Classes are reference type that is they are stored on heap
Class can be inherited and but can be instantiated


Class Employee
{
public in CustID;
public in CustName;
}

Structure:

Structure is collection of different types of data types.
Structure embers are public by default
Structure are value type that is they are stored on stack
Structure can not be inherited but can be instantiated


Struct Employee
{
public int CustID;
public string name;
}

Object:

Object is basic runtime entity OR object is instance of class.
Object consistsof data and function together
Object allows designing systems that are more robust and portable through the proper application of abstraction

       
public class Student
{
    public string First_Name { get; set; }
    public int Weight { get; set; }
    public Person(string First_Name, int Weight)
    {
        First_Name = first_Name;
        Weight = weight;
    }
    //Other properties, methods, events...
}
class Program
{
    static void Main()
    {
        Student person1 = new Student("Anil", 66);
        Console.WriteLine("Student First_Name = {0} Weight = {1}", person1.First_Name, person1.Weight);
    }
}

Output:
Student First_Name = Anil Weight = 66

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