title: Which Java Collection is best for this scenario
body: <p>In my application I have small tables(files) with unique keys (most of those have two or more feilds - composed keys). I would like to create a class for each of those small tables and load the data in to a java collection. This object will read the file and load the data in to a a java collection. I would then like to fetch the data from this collection by the key values so that I can have access to all fields. My question is which collection I should use or say which collection supports multiple keys? A link to an examole will be great. Thanks in advance! </p>