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How can I create an array of arrays without any repetition of values?

Shuaib Yunus
Greenhorn

Joined: Aug 13, 2011
Posts: 2
I'm trying to create a 5*3 array table that is generated with non-repeating values, but I cant seem to shuffle all the arrays efficiently without repeating values. Please help.
Wouter Oet
Saloon Keeper

Joined: Oct 25, 2008
Posts: 2700

First of all welcome to the Javaranch!

Something like:

Create the array.
Fill the array with number 1 through 15
start loop
get random x
get random y
get random x2
get random y2
swap(array[x][y], array[x2][y2])
end loop


"Any fool can write code that a computer can understand. Good programmers write code that humans can understand." --- Martin Fowler
Please correct my English.
Shuaib Yunus
Greenhorn

Joined: Aug 13, 2011
Posts: 2
Thanks a lot, it was helpful. My program works perfectly.
 
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subject: How can I create an array of arrays without any repetition of values?
 
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