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Math.random() symbol not found error?

thejwal pavithran
Ranch Hand

Joined: Feb 11, 2012
Posts: 117


When I compile the above program in jcreator IDE, there are no errors and there is succesful compilation and when i write it in TextPad and compile it from the command line, I get a compile error which says Math.random() not found

What is my mistake here? please help.


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Matthew Brown
Bartender

Joined: Apr 06, 2010
Posts: 4342
    
    7

Do you have a Math class of your own hanging around? That's one possible cause. The compiler could be trying to use that instead of java.lang.Math, and if your class doesn't have a random() method it will fail with that error.
thejwal pavithran
Ranch Hand

Joined: Feb 11, 2012
Posts: 117
Matthew Brown wrote:Do you have a Math class of your own hanging around? That's one possible cause. The compiler could be trying to use that instead of java.lang.Math, and if your class doesn't have a random() method it will fail with that error.


Bang on!!

there was a Math.class in the classes folder. deleted it and got it working. thank you
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 37950
    
  22
Probably better to work out how to use a java.util.Random object. It’s much more versatile than Math.random().
Matthew Brown
Bartender

Joined: Apr 06, 2010
Posts: 4342
    
    7

Campbell Ritchie wrote:Probably better to work out how to use a java.util.Random object. It’s much more versatile than Math.random().

But if you do, watch out for the same problem again since you've got a Random class!

(It's generally a good idea to avoid having classes with the same name as core Java classes, especially commonly used ones.)
 
 
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