ZhouXY108/hutool
1
0
Fork 0
mirror of https://gitee.com/chinabugotech/hutool.git synced 2025-05-09 23:51:34 +08:00
Code Issues Packages Projects Releases Wiki Activity

用RandomUtil

Browse Source
This commit is contained in:
achao 2021-11-10 20:31:32 +08:00
parent 1e7af4d7fc
commit 8e0a5e2029
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
View File

@ -1362,10 +1362,9 @@ public class NumberUtil {
throw new UtilException("Size is larger than range between begin and end!");
}
Random ran = new Random();
Set<Integer> set = new HashSet<>();
Set<Integer> set = new HashSet<>(Math.max((int) (size / .75f) + 1, 16));
while (set.size() < size) {
set.add(begin + ran.nextInt(end - begin));
set.add(begin + RandomUtil.randomInt(end - begin));
}
return set.toArray(new Integer[size]);