将对象开发为未初始化的变量char junk

Cevelop 对象到 char junk 作为“未初始化变量”。在这种情况下,解决问题的正确方法是什么?

 friend std::ostream& operator<<(std::ostream& os_a, College& college_a) {
   return os_a <<  college_a.id_ + ' ' + college_a.name_;
 }

 friend std::istream& operator>>(std::istream& is_a, College& college_a) {
   char junk;
   return is_a >> college_a.id_ >> std::noskipws
       >> junk, std::getline(is_a, college_a.name_);  // name: between 1st space and endofline.
  }