Creating x random numbers that add up to a certain number

Question

How would I go about creating 3 random numbers from x - y that add up to a certain number.
Or how would i create a set of numbers that are random but not repeating.

Answer 1

How would I go about creating 3 random numbers fromx
- y that add up to a certain number.Create 2 random numbers. Number 3 = certain
number - (random number 1 + random number 2)
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Rand
om.html
Or how would i create a set of numbers that are
random but not repeating.Create a List and fill it with numbers 1 - n. Shuffle
the list with the Collections.shuffle(...) method.
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Coll
ections.htmlOr use a Set instead of a List, since Sets do not contain duplicates.
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html
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