Java generic method declaration fundamentals

Question

I\'m starting to learn Genericsfor Java and I read several tutorials, but I\'m a bit confused and not sure how a generic method is declared.

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Answer 1

Your example shows two different concepts: generic classes and generic methods

This is a generic class introducing a type parameter :

public class Box {

}

While these are generic methods introducing their own type parameter :

public  List transform(List in) {
    return null;
}

public static  A getFirstElement(List list) {
    return null;
}

Compare it with a class having a field of a specific name and a method having a parameter of that name:

public class Box {
    private String name;

    publix Box(String name) {
    }
}