Generic Array in Java the right way

Question

How can i create a generic array in java, the right way?

T[] buffer = (T[]) new Object[maxSize];

Would it better to create a new generic collection and then cast it?

that *is* the right way. What do you mean a generic collection and than cast it? — Eugene, Mar 13 '18 at 12:40

score 1 · Accepted Answer · answered Mar 13 '18 at 12:29

1

Just declare a generic list:

List<T> list = new ArrayList<T>();

Or check answer here

answered Mar 13 '18 at 12:29

score 0 · Answer 2 · answered Mar 13 '18 at 12:26

0

Somthing like this

final T[] a = (T[]) Array.newInstance(clazz, size);

answered Mar 13 '18 at 12:26

Ashwel

score 0 · Answer 3 · answered Mar 13 '18 at 12:37

0

You can use newInstance method that offer Array class, but it require the Class of type.

The only solution that i see is create a Object array and then cast it to T[]

T[] array = (T[])Array.newInstance(Object.class, size);

answered Mar 13 '18 at 12:37

David Geirola

3 Answers3