Random number generator Write your own integer random number generator as a class that uses a formula to obtain the next pseudo-random number from the previous one. A random number program works by...

Random number generator Write your own integer random number generator as a class that uses a formula to obtain the next pseudo-random number from the previous one. A random number program works by starting with some ‘seed’ value. Thereafter the current random number is used as a basis for the next by performing some calculation on it which makes it into some other (apparently random) number. A good formula to use for integers is:

nextR = ((oldR * 25173) + 13849) % 65536;

which produces numbers in the range 0 to 65535. The particular numbers in this formula have been shown to give good, random-like, results.

Initially, make the seed value equal to 1. Then, in a more sophisticated program, obtain the milliseconds part of the time using library class Calendar (see Appendix A) to act as the seed.