C# Class..Object

In C#, you use the class keyword to specify a class and you signify its parent with a colon and the name of the parent class. When you instantiate an object from a class, you use the new keyword.

Add a Property

Now let's give our cyborg a name:

public class Cyborg : System.Object
{
  public virtual void IntroduceYourself()
  {
    MessageBox.Show("Hi, my name is " + Name + ".");
  }

  public String Name;
}

The following exercises our new functionality:

Cyborg T1 = new Cyborg();
T1.Name = "Number 1";
T1.IntroduceYourself();  

Add a Method

Now let's give our cyborg the ability to speak:

public class Cyborg
{
  public virtual void IntroduceYourself
  {
    MessageBox.Show("Hi, I do not have a name yet.");
  }

  public virtual void Speak(string pMsg)
  {
    MessageBox.Show(pMsg);
  }
}

Create object from class:

Cyborg T1 = new Cyborg();
T1.Speak("Humans are imperfect.");

Complete Listing

Here is the complete code listing (a form with a button on it). I renamed the namespace to Skynet, seemed appropriate.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Skynet
{
  public class Cyborg : System.Object
  {

    //Properties:
    public String Name;

    //Methods:
    public virtual void IntroduceYourself()
    {
      MessageBox.Show("Hi, my name is " + Name + "."); 
    }

    public virtual void Speak(string pMsg) 
    {
      MessageBox.Show(pMsg); 
    }
  }

  public partial class Form1 : Form
  {
    public Form1()
    {
      InitializeComponent();
    }
 

    private void button1_Click(object sender, EventArgs e)
    {
      Cyborg T1 = new Cyborg();
      T1.Name = "Number 1";
      T1.IntroduceYourself();
      T1.Speak("Humans are imperfect.");
    }
  }
}