How to get a sub array of array in Java, without copying data?

Question

I have some library of classes, working with my data, which is being read into buffer. Is it possible somehow to avoid copying arrays again and again, passing parts of data

Answer 1

Many classes in Java accept a subset of an arrays as parameter. E.g. Writer.write(char cbuf[], int off, int len). Maybe this already suffices for your usecase.

Answer 2

You could use (ArrayList).subList(value1, value2) i belive, perhaps that could help in your case? That is ofcourse if you want to use an ArrayList.

Answer 3

Arrays.asList(array).subList(x, y).

This method doesn't give you an array, but a List, which is far more flexible.