title: What exactly is a "member" of a class in C++?
body: <p>I am new to C++, and have experience in Java and Python. I tried to search this question on Stack for a while, but did not find any questions that resembled this (although maybe that is because of my cursory knowledge of C++).</p>
  
  <p>I was reading the C++ Primer book until I stumbled upon "members" of classes in C++. I can understand the concept of a class from Java, but I am unsure of what a "member" is.</p>
  
  <p>Is a member simply an instance of a class? If so, how come it seems like the variables in a class are also considered members (in the Primer, the ISBN number of a class for a book is considered a member)?</p>
  
  <p>Could anyone give a general definition of a "member" in C++?</p>