title: Questions about UML class diagrams?
body: <p>Hello I have a few questions about UML class diagrams any help will be appreciated</p>
  
  <p>1) How do you show pointers in attributes?</p>
  
  <p>2) Whats multiplicity?</p>
  
  <p>3) What direction should the composition arrows be?</p>
  
  <p>4) How do you put enums?</p>