Defining my own types

Question

What i want to do i create class that is called "Company" and with in the class there should be an array that contains multiple data:
Example:
Class Company{
Myowndatatype{
date date;
int price;
int time;
Myowndatatype[] = new Myowndatatype();
How is this best done in java, should i use an interface, or just make another class or what?

Answer 1

Why is a List better to use then a old school array? Is not an array much faster?List is "better" because it offers a more extensive, easy-to-use API and automagically handles a lot of the manual mess associated with dealing with arrays. Whether an array is faster or not is in all likelihood the completely wrong question to ask; better to worry about writing clean, simple, well-designed, easy-to-read code. Chances are better than excellent that Java's List implementations will be far more than fast enough.
~