array of structures, or structure of arrays?

Question

Hmmm. I have a table which is an array of structures I need to store in Java. The naive don\'t-worry-about-memory approach says do this:

public class Record          


        

Answer 1

Whenever I have tried doing number crunching in Java, I have always had to revert to C-style coding (i.e. close to your option 2). It minimised the number of objects floating around in your system, as instead of 1,000,000 objects, you only have 3. I was able to do a bit of FFT analysis of real-time sound data using the C-style, and it was far too slow using objects.