How do you wait to initialize an array until you know the length?

Question

I want to create a series of 6 parallel arrays that are global variables to store file input, but I won't know how long they are meant to be until I've processed a part of the input. Is there a way to delay the initialization of an array until I've processed the length of the array?

Answer 1

It is possible to initialize a variable then give it a value later.

int[] myArray;
//... Do stuff.
myArray = new int[theLengthIWant];