Write some code using interfaces, virtual methods, and an abstract class.

Write some code using interfaces, virtual methods, and an abstract class.
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1 Answer

Answer :

using System;

public interface Iexample1

{

int MyMethod1();

}

public interface Iexample2

{

int MyMethod2();

}

public abstract class ABSExample : Iexample1, Iexample2

{

public ABSExample()

{

System.Console.WriteLine("ABSExample constructor");

}

public int MyMethod1()

{

return 1;

}

public int MyMethod2()

{

return 2;

}

public abstract void MyABSMethod();

}

public class VIRTExample : ABSExample

{

public VIRTExample()

{

System.Console.WriteLine("VIRTExample constructor");

}

public override void MyABSMethod()

{

System.Console.WriteLine("Abstract method made concrete");

}

public virtual void VIRTMethod1()

{

System.Console.WriteLine("VIRTMethod1 has NOT been

overridden");

}

public virtual void VIRTMethod2()

{

System.Console.WriteLine("VIRTMethod2 has NOT been

overridden");

}

}

public class FinalClass : VIRTExample

{

public override void VIRTMethod2()

{

System.Console.WriteLine("VIRTMethod2 has been overridden");

}

}
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