random numbers : Java Glossary

by Roedy Green ©1996-2009 Canadian Mind Products
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random numbers: There are two kinds of random numbers, pseudo-random numbers that can be rapidly generated from mathematical formulae, and true random numbers, generated from some random physical process such as radioactive decay. Pseudo-random numbers are useless for cryptography. You need true random numbers for that. You now probably want to follow the link to pseudo-random numbers.
Collections.shuffle will scramble the objects in an ArrayList.
modulus
Orion Random Number Generator
pseudo-random numbers
true random numbers
uncrackable encryption

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