C#: structs

Structs are just like classes.

Structs can have

a.   Private and public properties

b.   Constructors

c.   Methods etc.,

There are differences between structs and classes. First let’s see basics of structs.

How to define a struct?

By using ‘struct’ keyword, you can define a struct.

Example

struct Employee{

}

Adding constructors to struct

Just like how you add constructors to classes, you can add constructors to struct.

struct Employee
{
    private int id;
    private String firstName;
    private String lastName;

    public Employee(int id, String firstName, String lastName)
    {
        this.id = id;
        this.firstName = firstName;
        this.lastName = lastName;
    }

}

Adding methods to struct

Just like how a class has methods we can add methods to struct.

struct Employee
{
    private int id;
    private String firstName;
    private String lastName;

    public Employee(int id, String firstName, String lastName)
    {
        this.id = id;
        this.firstName = firstName;
        this.lastName = lastName;
    }

    public String getName()
    {
        return firstName + "," + lastName;
    }
 
}

Following is the complete working application.

Program.cs

using System;

struct Employee
{
    private int id;
    private String firstName;
    private String lastName;

    public Employee(int id, String firstName, String lastName)
    {
        this.id = id;
        this.firstName = firstName;
        this.lastName = lastName;
    }

    public String getName()
    {
        return firstName + "," + lastName;
    }

    public int Id
    {
        get
        {
            return id;
        }

        set
        {
            id = value;
        }
    }

    public string FirstName
    {
        get
        {
            return firstName;
        }

        set
        {
            firstName = value;
        }
    }

    public string LastName
    {
        get
        {
            return lastName;
        }

        set
        {
            lastName = value;
        }
    }
}

class Program
{
    static void Main(string[] args)
    {
        Employee emp1 = new Employee(1, "Hari Krishna", "Gurram");
        
        Console.WriteLine("Id : {0}", emp1.Id);
        Console.WriteLine("First Name : {0}", emp1.FirstName);
        Console.WriteLine("Last Name : {0}", emp1.LastName);
    }
}

Output

Id : 1

First Name : Hari Krishna

Last Name : Gurram

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