Why use hexadecimal constants?

Question

Sometimes I see Integer constants defined in hexadecimal, instead of decimal numbers. This is a small part I took from a GL10 class:

public static final int          


        

Answer 1

When it comes to big numbers, representing them in hexadecimal makes them more readable, because they're more compact.

Also, sometimes it is significant for conversions to binary: a hexadecimal number can be very easy converted to binary. Some programmers like to do this, it helps when doing bit operations on the numbers.

As for the performance gain: no, there is none.