Implementation of generic interface with specific type in Java

generics, java

Solution

Since you expect `train` to accept a `String`, your class should implement `Petlover<String>`:

class Dogperson implements Petlover<String> {
    int age;

    public void train(String someDog) {...};
}

or perhaps the `train()` method of `Dogperson` should accept a `Dog` argument, and then the class would implement `Petlover<Dog>`.

Problem

Consider the following generic interface: ``` interface Petlover<T>{ void train(T somePet); } ``` I understand that it's possible to provide generic implementations to generic interfaces (e.g., `class MalePetLover<T> implements Petlover<T>`). But I am having trouble implementing the interface for a specific type only: ``` class Dogperson implements Petlover<T> { int age; void train(String someDog){...}; } ``` The compilation error is `train(String) in Dogperson cannot implement train(T) in Petlover`. What would be a right way to handle this?

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