What efficient Java collection would be used to store a million strings?

What efficient Java collection would be used to store a million strings?

References

Reference NO 1

http://stackoverflow.com/questions/13639712/what-efficient-java-collection-would-be-used-to-store-a-million-strings

Reference NO 2

http://stackoverflow.com/questions/629804/what-is-the-most-efficient-java-collections-library

Reference NO 3

http://www.coderanch.com/t/478502/Performance/java/store-huge-string-array-list

Reference NO 4

http://kohlerm.blogspot.com/2009/01/is-javalangstringintern-really-evil.html

Reference NO 5

http://code.google.com/p/vanilla-java/wiki/HugeCollections

Reference NO 6

http://blog.codecentric.de/en/2012/03/save-memory-by-using-string-intern-in-java/

Reference NO 7

http://java-performance.com/

Reference NO 8

http://oreilly.com/catalog/javapt/chapter/ch04.html