code: public static boolean equalsAny(final String str, String[] searchChars) {
          
          for(String search : searchChars) {
              if(str.equals(search)) {
                  return true;
              }
          }
          
          return false;
          
      }
docs: 何れかの文字と等しいかどうか
  @param str
  @param searchChars
  @return