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Abstract class - Whetehere sub class should implement all the abstract methods of base class ?
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kri shan
Ranch Hand
Joined: Apr 08, 2004
Posts: 1300
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public abstract class Vehicle {
abstract int total();
}
public class Car extends Vehicle {
}
Is it mandatory to implement abstract method total in the sub class Car?
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Bear Bibeault
Author and ninkuma
Marshal
Joined: Jan 10, 2002
Posts: 56168
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No. But if you don't, Car must also be abstract.
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Rob Spoor
Sheriff
Joined: Oct 27, 2005
Posts: 19216
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In other words, if the class is not abstract then yes. After all, a non-abstract class can have no abstract methods, even not inherited from an abstract super class.
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subject: Abstract class - Whetehere sub class should implement all the abstract methods of base class ?
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