The Java "Random" class lets you generate a random number for your Java apps. You use this number generator to randomize images shown in your apps. You load the images into an array, randomly generate ...

Even though rand() may be a good enough random number generator for making a video game, the patterns of random bits it spits out may not be sufficient for applications requiring truly random data.

[Karl] was in need of a hardware random number generator, but is needs had a few caveats: it needed to be cheap, and sufficiently random. Random number generation can get quite crazy with Geiger tubes ...