Question

I have a quick question. I have an integer array in java that needs its length to vary throughout the class. Specifically, I need it to increase by one in certain situations. I tried it like this.

        sbgHeadX = new int[ numberOfSBG ];

I would increase the integer variable numberOfSBG when I needed to, but I don’t think this works. Is there any other way?

Answer 1

I would suggest you use an ArrayList as you won’t have to worry about the length anymore. Once created, you can’t modify an array size:

An array is a container object that holds a fixed number of values of a single type. The length of an array is established when the array is created. After creation, its length is fixed.

(Source)