java.util.Random: nextInt vs nextDouble

Hi,

I am using java.util.Random to generate a value between -180 and +180; I only get a proper value when I use nextDouble. Using nextInt I get values that are not within the range I specified. Here is my code:

private Random randomize =new Random();

privateint upperLimit = 180;

privateint lowerLimit = -180;

privateint wD;

(...)

wD = (randomize.nextInt() * (upperLimit - lowerLimit) + lowerLimit);

... gives me a value of e.g. 140642644; when I change the variables to double as well as to (int) randomize.nextDouble()... I get a correct value between -180 and +180.

Why?

[902 byte] By [SFLa] at [2007-11-26 18:09:06]