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Collections, HashMaps, etc

Ashimashi Kabashi
Ranch Hand

Joined: Sep 11, 2006
Posts: 84
where can I get documentation for the different data structures in java?


Collection, ArrayList, Vector, HashTree, HasMap, LRUMap?

Henry Wong

Joined: Sep 28, 2004
Posts: 18990

Well, you can start with the JavaDoc...

There are a few basic interfaces the List, the Set, the Queue, and the Map -- all are in the java.util package. With the JavaDoc, you can figure out what implementations of each are available, etc.

Or you can start with the Sun tutorial on collections...


Books: Java Threads, 3rd Edition, Jini in a Nutshell, and Java Gems (contributor)
arulk pillai
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Joined: May 31, 2007
Posts: 3259
In addition to what Henry suggested can be handy, but it is a bit out of date.

500+ Java Interview Questions and Answers | Java job hunting know how & Java resumes
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14347

Here is an overview of documentation about the Collections API in the JDK documentation:

Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 8 API documentation
I agree. Here's the link:
subject: Collections, HashMaps, etc