creating array without declaring the size - java

Question

i\'ve digging around about the same issue but i couldn\'t find the same as i had

i want to create an array without declaring the size because i don\'t know how it w

Answer 1

Using Java.util.ArrayList or LinkedList is the usual way of doing this. With arrays that's not possible as I know.

Example:

List unindexedVectors = new ArrayList();

unindexedVectors.add(2.22f);

unindexedVectors.get(2);