Question on division (Java) - Also Perl, PHP, Python ...

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Q:

What's the difference between % and /?

A:

/ returns the result of a division
% returns the remainder when you do a division.

Divide 18 by 7 you get 2, with a remainder of 4 (i.e. 4 left over).

so 18/7 give 2, and 18%7 gives 4.

And from Tcl/Tk and Expect... you can see the float v integer considerations of a division!

% expr 18 / 7

2

% expr 18. / 7

2.57142857143

% expr 18 % 7

4

%

(written 2007-11-28, updated 2008-09-15)

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