We closed this forum 18 June 2010. It has served us well since 2005 as the ALPHA forum did before it from 2002 to 2005. New discussions are ongoing at the new URL http://forum.processing.org. You'll need to sign up and get a new user account. We're sorry about that inconvenience, but we think it's better in the long run. The content on this forum will remain online.

Index › Programming Questions & Help › Syntax Questions › check for belonging to ArrayList

oompa_l Full Member Offline Posts: 212	check for belonging to ArrayList May 12th, 2009, 2:26pm   is there a way to check if an object is a member of a given ArrayList? I am looking for a way that does not cycle through every item in the list to see if there is an equivalency....does something like that exist?

NoahBuddy Ex Member	Re: check for belonging to ArrayList Reply #1 - May 12th, 2009, 2:56pm   Not without cycling. both 'contains()' and 'indexOf()' internally check each item. A HashMap is probably closer to what you are looking for.