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Math.random().....any formula to adjust required range?

Hassan Marzooq
Greenhorn

Joined: Dec 22, 2002
Posts: 2
HELLO ALL
I am looking for a formula or method which takes our required minimum & maximum range and will return numbers within our specified range using Math.random().Possible signature of such method is like this,

Is this thing is presented by some author.?
Best Regards,
Hassan!
[ December 22, 2002: Message edited by: Hassan Marzooq ]
Maulin Vasavada
Ranch Hand

Joined: Nov 04, 2001
Posts: 1871
hi Hassan,
i really don't see a problem you are facing. do you want to know how you can generate random numbers between the number range you provide?
if thats the case then try the following code,

modify this to your needs...
if this was not the problem then please clarify more to us...
regards
maulin
Maulin Vasavada
Ranch Hand

Joined: Nov 04, 2001
Posts: 1871
hi
sorry in creating constructor in main i swapped two arguments
it should be random(min,max) ..
regards
maulin
Hassan Marzooq
Greenhorn

Joined: Dec 22, 2002
Posts: 2
HELLO.
Exactly for the same code i was looking for.But i am amazed that why any author didn't mention the same technique.Anyway, thanks for sharing code.
Best Regards,
Hassan.
joyce ann casayuran
Greenhorn

Joined: Dec 16, 2002
Posts: 1
i found this code on the web.
and i think this is also a greate Random class

hope this will help
Jim Yingst
Wanderer
Sheriff

Joined: Jan 30, 2000
Posts: 18671
Note that the code given by Maulin will never return the specified maximum value, because the number returned by Math.random() will always be less than 1, and int arithmetic rounds down for positive numbers. E.g. if min is 1 and max is 6, the largest value you might see is 5.999999... - but when you round it to an int, it's 5, not 6.
The intRandom(low, high) method shown by Joyce is correct - it has an extra +1 which makes the necessary difference.
[ December 23, 2002: Message edited by: Jim Yingst ]

"I'm not back." - Bill Harding, Twister
Peter den Haan
author
Ranch Hand

Joined: Apr 20, 2000
Posts: 3252
- Peter
Maulin Vasavada
Ranch Hand

Joined: Nov 04, 2001
Posts: 1871
hi all,
of course i meant it to be the way it is. it won't return MAX number anytime. i just shifted the range from [0.0,1.0) to [min,max)
once basics works then grooming doesn't take much time
thanks for pointing that out.
regards
maulin
 
Don't get me started about those stupid light bulbs.
 
subject: Math.random().....any formula to adjust required range?
 
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