code: public static Class<?>[] getTypes(Object[] objects) {
          if (!Checker.isNull(objects)) {
              Class<?>[] classes = new Class<?>[objects.length];
              int i = 0;
              for (Object object : objects) {
                  classes[i++] = Checker.isNull(object) ? null : object.getClass();
              }
              return classes;
          }
          return null;
      }
docs: 获取所有对象类型
  
  @param objects 对象
  
  @return 所有对象类型