This is a very simple program demonstrating how easy it is to predict the output of the java.util.Random class.
I take zero credit for this; the code was lifted and adapted from this blog entry and its comments:
- Roper, James. "Cracking Random Number Generators - Part 1." Blog entry, September 20, 2010. Accessed Apr 25, 2016.
This program works successfully in Java 8, and I believe also in Java 7 but I haven't checked. I'm pretty certain it
won't work on Java 6, because some of the constants in the java.util.Random class have changed, but it should be
trivial to adapt it to that (the original blog entry used the Java 6 values after all).