Suppose you want to make a random 9 digit number, using every number from 1 to 9 exactly once. You have a process called random(top) that gives a random number up to top (if top was 5, it would give random numbers from 1 to 5)

a) How could you do this?

b) If top couldn't be more than 9, how could you do this using random(top) only 9 times (or less)?

yah i am going to do this in java.
i would create an array for every random number that has been picked(up to nine). then i would have it check through the arrey to see if the number has been picked already then create another random int.

Posted by drew on 2003-11-24 21:18:45