Multiple Classes In Multiple Files

With the help of this program i want to describe that hows we can create different class in different file and at last we can compile all the file to make one exe file.

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Create a file and save the file named :- ClassATest.cs

using System;

class ClassATest

{

public void Display()

{

Console.WriteLine("Hi ! I am in ClassATest");

}

}

Notice i did not define the Main method in this class file.

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Create a second file and save the file named :- ClassBTest.cs

using System;

class ClassBTest

{

public static void Main()

{

ClassATest catest = new ClassATest();

catest.Display();

}

}

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In the ClassBTest i define the Main method and make an object reference of ClassATest and call its method.

The screen given below describe how to compile this programs.