Problems generating random numbers within a range with java

Question

I have tried many different ways to generate random numbers but I can't seem to make a simple nextInt(int min, int max) method that will work on negative and positive ranges.

10 to 20 -10 to 10 -10 to -20

If I get it working for one range, the other doesn't work.

Answer 1

What have you tried?

rnd.nextInt(max+1-min)+min;

should work as long as min < max . If you want max exclusive, remove the +1 .