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storing a set of integers in an array

Khair Bahir
Greenhorn

Joined: Aug 01, 2011
Posts: 14
Hello,

I'm trying to generate 50 random integers between 0 and 10 using a 'for' construct and the 'Math.random()' method. I know how to do this, but I don't know how to store all these integers in an array (one dimension). I really only know how to store integers by manually inputting them into the array. I haven't made much progress and could use some help.

This was my attempt (it doesn't work):



Thanks.
Abhinav Kumar Mishra
Greenhorn

Joined: Jul 25, 2011
Posts: 6
kae cee wrote:Hello,

I'm trying to generate 50 random integers between 0 and 10 using a 'for' construct and the 'Math.random()' method. I know how to do this, but I don't know how to store all these integers in an array (one dimension). I really only know how to store integers by manually inputting them into the array. I haven't made much progress and could use some help.

This was my attempt (it doesn't work):



Thanks.


hi

In the above code double value returned by random() function is converted into int before multiplication with 11.So we have to put the statement as
array[j]=(int)(Math.random()*11);
Matthew Brown
Bartender

Joined: Apr 06, 2010
Posts: 4422
    
    8

When you say "it doesn't work"...what does happen?
fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 11422
    
  16

do you know your operator precedence? Specifically, which is higher - a cast, or multiplication?


There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
Khair Bahir
Greenhorn

Joined: Aug 01, 2011
Posts: 14
Yeah, I know now that casts take higher precedence than multiplication operators, which is why the program just displayed a bunch of zeroes when I omitted a set of parentheses. Thanks for your guys' help.
Pradeep allada
Greenhorn

Joined: Jul 28, 2011
Posts: 17
have you tried instructions given by Mr. Abhinav Kumar Mishra,
check it once
 
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