Classes

Question

User-797751191 posted

Hi

  I have below class and i want how  StudentAddress & Grade works

public class Student
{
    public int StudentID { get; set; }
    public string StudentName { get; set; }
    public DateTime? DateOfBirth { get; set; }
    public float Weight { get; set; }
        
    public StudentAddress StudentAddress { get; set; }
    public Grade Grade { get; set; }
}

Thanks

Answer 1

User-719153870 posted

Hi jsshivalik,

how  StudentAddress & Grade works

I think it's easy to understand, this StudentAddress is just like a string or int and you instantiate them as StudentAddress and StudentName or StudentID. It's the same thing.

But i won't recommand you set the instanced object name as same as your class.

It should be like, this can lead to unexpected errors:

public class Student
{
    public int StudentID { get; set; }
    public string StudentName { get; set; }
    public DateTime? DateOfBirth { get; set; }
    public float Weight { get; set; }
        
    public StudentAddress SAddress { get; set; }
    public Grade SGrade { get; set; }
}

You can also refer to Classes (C# Programming Guide) and Classes and Structs (C# Programming Guide) for more information.

Best Regard,

Yang Shen

Answer 2

User1120430333 posted

public StudentAddress StudentAddress { get; set; }
public Grade Grade { get; set; }

Those are objects within the Student object.

To access the properties of the objects in student you would have to address like this.

var student = new Student();

student.StudentAddress  = new StudentAddress();

student.Grade =new Grade();

student.StudentName = "jasshvalik";

student.StudentAddress.Address = "no where";

student.Grade.TheGrade = "F";

OO is OO .NET of Java.

https://alfredjava.wordpress.com/2008/07/08/class-vs-object-vs-instance/