title: What are the disadvantages to hashmaps?
body: <p>Whatever language I use, I always aim to use the equivalent of a hashmap. However, I was going through some practice interview questions and it asked what is the limitation to this?</p>
  
  <p>The only reason I could think of is limited main memory, but then that wouldn't be limited only to hashmaps, but also ArrayLists etc etc.</p>