Generics naming confusion

[crimson grotto]

Hello,

why is

public static <T> List<T> asList(T[] array)

correct, and not

public static List<T> asList(T[] array)

?

[mental mantle]

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[tiny tusk]

because T is not defined in the second example

[crimson grotto]

So you ALWAYS have to declare BEFORE the return value what generic types exist?

[tiny tusk]

If its a static method, or the method needs its own generics you have to declare it before the return value. If the method is not static and doesn't need its own generics but can use the generic type of the class you don't need to declare any additional generics.

[tiny tusk]

I don't actually understand your second question. What do you mean by what generic types exist?

[crimson grotto]

That was meant as one question sorry.
I meant that I have to define which generics I want to use before the method name

[crimson grotto]

Ah well yes only the method is static here

[tiny tusk]

yeah all static methods have to define their own generics

[crimson grotto]

I just did not know you have to define the generic at one point (or whatever you call the T here)

[tiny tusk]

well if you don't define the generic java has no idea what you are talking about xD

[crimson grotto]

Thats....true

I am so overworked by the tasks this week I get everything wrong I possibly can : D

Thanks (once again this week :D)!

[mental mantle]

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[tiny tusk]

I helped you this week ?

[crimson grotto]

Yesterday

[tiny tusk]

oh shit i forgot

[crimson grotto]

The IDE thing

[tiny tusk]

oh yeah. Well if you have questions feel free to send them here 🙂