Cisco Garcia’s Adventures

The example object model: The object set we are creating is going to use encryption as its central theme.  We want to create a situation where one object manages other objects that are based on a particular object.  Fortunatly this comes with pictures:

Prerequisits: The assumption is that you have Visual Studio 2008 installed and operational.  One way to test for operation is simply to build an empty Visual C# application, and execute.  If all things are well an empty form should apear.  Close form and all files, you are ready to begin.

 Step 1: Start Visual Studio, create a new project and add some components to help test our objects.

Step 2: Adding the three classes.

Step 3: Defining the three classes

-Code Snip-

public abstract class CryptionLogiBaseClass
{
     string Key;
     public CryptionLogiBaseClass(string NewKey)  { Key = NewKey; }
     public string Encrypt()  { return ""; }
     string Value;
}


-Code Snip-

public class MyFakeLogiClass:CryptionLogiBaseClass
{
     public MyFakeLogiClass(string KeyValue) : base(KeyValue) { }
     public new string Encrypt()
     {
                string ReturnValue="";
                for (int x=Value.Length-1;x>=0;--x)
                      ReturnVal += Value[x];
                 return ReturnVal;
     }
     public new string Decrypt()
     {
         //Circular Logic so same routine
         return Encrypt();
     }
}


-Code Snip-

public class SecureDataClass
{
     public string Encrypt(string Value)
     {
          MyFakeLogiClass ALogi =  new MyFakeLogiClass("TestKEY");
          ALogi.Value = Value;
         return ALogi.Encrypt();
     }
}


-Code Snip-

private void button1_Click(object sender,EventArgs e)
{        
     SecureDataClass LockIt= new SecureDataClass();          
     labelOutput.Text=LockIt.Encrypt(textBoxInput.Text);    
}


Step 4: Running and testing the Objects.

You should be able to type into the TextBox a simple sentence, and hit the Go button, and have the answer displayed.  All the real processing is all in the object and not in the hosting application (form object in this case)

Thats it, we implemented the basic object model. It is done from the Visual Studio Context, and uses Visual C# as the implementing language.  Hope this gives a good basic layout for you to digest and start you on your way to OOP developed solutions and a better understanding of coding.

This entry was posted on Monday, August 11th, 2008 at 10:14 am and is filed under Computers, Software. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.