| Package | Description | 
|---|---|
| java.net | Provides the classes for implementing networking applications. | 
| 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. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | MulticastSocketThe multicast datagram socket class is useful for sending
 and receiving IP multicast packets. | 
| Modifier and Type | Method and Description | 
|---|---|
| abstract DatagramSocket | DatagramChannel. socket()Retrieves a datagram socket associated with this channel. | 
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