title: where to find time complexity of java methods?
body: <p>I am new to java and learning about various methods from docs.oracle.com but the weird thing is, they didn't mention time complexity of any methods described there, e.g. on this page: <a href="https://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html#get(int)" rel="nofollow noreferrer">https://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html#get(int)</a> <br>
  there are some information about "get()" method but no info about complexity! I don't find an appropriate place to ask where to find info about complexity. Maybe there is such information like cplusplus.com but I don't know about. I searched net and failed. So, please forgive me if this is stupid question.</p>