code: public static boolean containsIgnoreCase(final String string, final String[] strings) {
          if (null == strings) {
              return false;
          }
  
          return Arrays.stream(strings).anyMatch(str -> StringUtils.equalsIgnoreCase(string, str));
      }
docs: Determines whether the specified strings contains the specified string, ignoring case considerations.
  
  @param string  the specified string
  @param strings the specified strings
  @return {@code true} if the specified strings contains the specified string, ignoring case considerations, returns {@code false}
  otherwise