奇趣网|统计宝|奇趣随机数生成器|Java生成随机数的函数有哪些？有漏洞吗？

Java生成随机数的函数有哪些？有漏洞吗？奇趣编程整理了以下这些。

1、java.lang.Math

示例 int randomWithMathRandom = (int) ((Math.random() * (max – min)) + min);

2、java.util.Random

示例

Random random = new Random();
int randomWithNextInt = random.nextInt();

3、random.ints

示例：IntStream unlimitedIntStream = random.ints();

4、java.util.concurrent.ThreadLocalRandom

int randomWithThreadLocalRandomInARange = ThreadLocalRandom.current().nextInt(min, max);

int randomWithThreadLocalRandom = ThreadLocalRandom.current().nextInt();
int randomWithThreadLocalRandomFromZero = ThreadLocalRandom.current().nextInt(max);

IntStream streamWithThreadLocalRandom = ThreadLocalRandom.current().ints();

5、java.util.SplittableRandom

SplittableRandom splittableRandom = new SplittableRandom();
int randomWithSplittableRandom = splittableRandom.nextInt(min, max);

IntStream limitedIntStreamWithinARangeWithSplittableRandom = splittableRandom.ints(streamSize, min, max);

6、java.security.SecureRandom

SecureRandom secureRandom = new SecureRandom();
int randomWithSecureRandom = secureRandom.nextInt();

int randomWithSecureRandomWithinARange = secureRandom.nextInt(max – min) + min;

7、org.apache.commons.math3.random.RandomDataGenerator

RandomDataGenerator randomDataGenerator = new RandomDataGenerator();
int randomWithRandomDataGenerator = randomDataGenerator.nextInt(min, max);

8、it.unimi.dsi.util.XoRoShiRo128PlusRandom

XoRoShiRo128PlusRandom xoroRandom = new XoRoShiRo128PlusRandom();
int randomWithXoRoShiRo128PlusRandom = xoroRandom.nextInt(max – min) + min;

Java的随机数生成函数常用的有以上几个，当然大家也可以自己设计一种算法来生成随机数。