java隨機產生6位元字字元數組

代碼如下

複製代碼

package com.system.oss.common.util; /**  * 動態產生隨機字元數組  *   * @author 蘇持恒  */ public class ShortMessageCodeUntil {     /**      * 隨機產生4位元字字元數組      *       * @return rands      */     public static char[] generateCheckCode()     {         String chars = "0123456789";         char[] rands = new char[4];         for (int i = 0; i < 4; i++)         {             int rand = (int) (Math.random() * 10);             rands[i] = chars.charAt(rand);         }         return rands;     }     /**      * 隨機產生6位元字字元數組      *       * @return rands      */     public static char[] generateCheckPass()     {         String chars = "0123456789";         char[] rands = new char[6];         for (int i = 0; i < 6; i++)         {             int rand = (int) (Math.random() * 10);             rands[i] = chars.charAt(rand);         }         return rands;     } }