Java array with more than 4gb elements

Question

I have a big file, it\'s expected to be around 12 GB. I want to load it all into memory on a beefy 64-bit machine with 16 GB RAM, but I think Java does not support byte arra

Answer 1

No, arrays are indexed by ints (except some versions of JavaCard that use shorts). You will need to slice it up into smaller arrays, probably wrapping in a type that gives you get(long), set(long,byte), etc. With sections of data that large, you might want to map the file use java.nio.