Uses of Interface
java.nio.channels.Channel

Packages that use Channel 
Package Description
java.lang
Provides classes that are fundamental to the design of the Java programming language.
java.nio.channels
Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
java.nio.channels.spi
Service-provider classes for the java.nio.channels package.