Uses of Interface
java.lang.Runnable

Packages that use Runnable 
Package Description
java.awt
Contains all of the classes for creating user interfaces and for painting graphics and images.
java.awt.event
Provides interfaces and classes for dealing with different types of events fired by AWT components.
java.awt.image.renderable
Provides classes and interfaces for producing rendering-independent images.
java.lang
Provides classes that are fundamental to the design of the Java programming language.
java.lang.ref
Provides reference-object classes, which support a limited degree of interaction with the garbage collector.
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.
java.util.logging
Provides the classes and interfaces of the Java™ 2 platform's core logging facilities.
java.util.stream
Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
javax.net.ssl
Provides classes for the secure socket package.
javax.swing
Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
javax.swing.text
Provides classes and interfaces that deal with editable and noneditable text components.