From c11a8e7bd9a8ce8129e35e230a0694887f913150 Mon Sep 17 00:00:00 2001
From: Redkale <22250530@qq.com>
Date: Thu, 17 May 2018 19:48:48 +0800
Subject: [PATCH]

---
 src/org/redkale/util/Utility.java | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/org/redkale/util/Utility.java b/src/org/redkale/util/Utility.java
index 3fa7a2c56..5f659cb30 100644
--- a/src/org/redkale/util/Utility.java
+++ b/src/org/redkale/util/Utility.java
@@ -150,6 +150,32 @@ public final class Utility {
         return random;
     }
 
+    /**
+     * 随机取array元素
+     *
+     * @param random SecureRandom
+     * @param array  数组
+     *
+     * @return 随机元素
+     */
+    public static int random(SecureRandom random, int[] array) {
+        int rs = random.nextInt();
+        return rs < 0 ? array[-rs % array.length] : array[rs % array.length];
+    }
+
+    /**
+     * 随机取array元素
+     *
+     * @param random SecureRandom
+     * @param array  数组
+     *
+     * @return 随机元素
+     */
+    public static long random(SecureRandom random, long[] array) {
+        int rs = random.nextInt();
+        return rs < 0 ? array[-rs % array.length] : array[rs % array.length];
+    }
+
     /**
      * 将多个key:value的字符串键值对组合成一个Map，items长度必须是偶数, 参数个数若是奇数的话，最后一个会被忽略
      * 类似 JDK9中的 Map.of 方法