[英]Problems generating random numbers within a range with java
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. 我尝试了许多不同的方法来生成随机数,但是我似乎无法制作一个简单的nextInt(int min,int max)方法,该方法可以在负范围和正范围内工作。
10 to 20 -10 to 10 -10 to -20 10至20 -10至10 -10至-20
If I get it working for one range, the other doesn't work. 如果我让它在一个范围内工作,那么另一个就不起作用。
What have you tried? 你尝试了什么?
rnd.nextInt(max+1-min)+min;
should work as long as min < max
. 只要min < max
都应该工作。 If you want max exclusive, remove the +1
. 如果要最大独占,请删除+1
。
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