Uses of Interface
java.util.SortedSet

Packages that use SortedSet 
Package Description
java.util
Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.
java.util.concurrent
Utility classes commonly useful in concurrent programming.
javax.imageio.plugins.tiff
Public classes used by the built-in TIFF plug-ins.