Best way to create Touple in Java

datastructures
guava
apache-collections

#1

Though we can create simple Touple<S,T> with generics in Java, It is handy to have some library methods to get Touples.

There is one library from http://www.javatuples.org/
http://www.javatuples.org/using.html

Here is a post that explains how to use it.