随机数Random报错 IllegalArgumentException: Bound must be positive
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错误代码
private static Random RANDOM = new Random();
private static Integer randomOnce(Integer max, Integer min) {
return RANDOM.nextInt(max) % (max - min + 1) + min;
}
报错信息
java.lang.IllegalArgumentException: bound must be positive
at java.util.Random.nextInt(Random.java:388)
解决方案
private static Random RANDOM = new Random();
private static Integer randomOnce(Integer max, Integer min) {
if (max<=0)
throw new IllegalArgumentException("Random positive must be greater than 0");
return RANDOM.nextInt(max) % (max - min + 1) + min;
}
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随机数Random报错 IllegalArgumentException: Bound must be positive