Using a long as ArrayList index in java

Question

I am writing this java program to find all the prime numbers up to num using the Sieve of Eratosthenes, but when I try to compile, it says I can\'t use a long var as an arra

Answer 1

There have been proposals to add long-indexed arrays to Java via Project Coin ( http://mail.openjdk.java.net/pipermail/coin-dev/2009-March/000869.html ) although nothing has been accepted or scheduled.