java.util.ArrayList<T>

Question

This is the implementation of java.util.Arrays.asList: ()

public static <T> List<T> asList(T... a) {
    return new ArrayList<T>(a);
}

How can that compile? I can't find a constructor for ArrayList, AbstractList or AbstractCollection that accepts a parameter like T... och T[].

Source code from:

java version "1.5.0_16"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_16-b06-284)
Java HotSpot(TM) Client VM (build 1.5.0_16-133, mixed mode, sharing

Jon Skeet · Accepted Answer · 2009-02-19 18:55:26Z

10

Okay, I think I see the confusion now.

The ArrayList type in question is a nested type within the Arrays class - it's not java.util.ArrayList.

answered Feb 19, 2009 at 18:55

Jon Skeet

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2 Comments

Anonymous Over a year ago

try to create a ArrayList with a T... arg or a T[]

Jon Skeet Over a year ago

Edited answer completely - hopefully that'll be more useful :)

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