using System;
public abstract class Vehicle
{
public abstract void display();
}
public class Bus : Vehicle
{
public override void display()
{
Console.WriteLine(Bus);
}
}
public class Car : Vehicle
{
public override void display()
{
Console.WriteLine(Car);
}
}
public class Motorcycle : Vehicle
{
public override void display()
{
Console.WriteLine(Motorcycle);
}
}
public class MyClass
{
public static void Main()
{
Vehicle v;
v = new Bus();
v.display();
v = new Car();
v.display();
v = new Motorcycle();
v.display();
}
}
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