Difference between static members and instance members

Introduction

 Instance members are unique to each object of the class, whereas static members are the same for all objects of a class. Let's say we have a class named 'Student.' Each student will have a different name, ID, and address. However, the name of the school is going to be the same for all students. So the name of the school can be declared as a static member, whereas the other attributes of the student can be declared as instance members.

Example:

This is an example of a class named Student

class Student
{
    public string Name;
    public int ID;
    public string Address

}

Let's now create 2 objects of this class Student. The instance variables of the students have its own unique values as you can see below.

Student Vipin = new Student();
Vipin.Name = "Vipin";
Vipin.ID = 20409068;
Vipin.Address = "Bangalore";

Student Neethu = new Student();
Neethu.Name = "Neethu";
Neethu.ID = 1234;
Neethu.Address = "Chennai";

Now, let's consider something that is actually the same for all students; let's say the name of the school is going to be the same for all students.
class Student
{
    public string Name;
    public int ID;
    public string Address
    public static string SchoolName = "XYZ School";

}

We can access 'SchooName' without creating 'Student' instances. Please see below.

string schoolName = Student.SchoolName;

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