ServerSocket

public class ServerSocket
extends Object implements Closeable

java.lang.Object
↳	java.net.ServerSocket

Known direct subclasses SSLServerSocket SSLServerSocket This class extends ServerSockets and provides secure server sockets using protocols such as the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols.

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This class implements server sockets. A server socket waits for requests to come in over the network. It performs some operation based on that request, and then possibly returns a result to the requester.

The actual work of the server socket is performed by an instance of the SocketImpl class. An application can change the socket factory that creates the socket implementation to configure itself to create sockets appropriate to the local firewall.

Summary

Public constructors
ServerSocket() Creates an unbound server socket.
ServerSocket(int port) Creates a server socket, bound to the specified port.
ServerSocket(int port, int backlog) Creates a server socket and binds it to the specified local port number, with the specified backlog.
ServerSocket(int port, int backlog, InetAddress bindAddr) Create a server with the specified port, listen backlog, and local IP address to bind to.

Public methods
Socket	accept() Listens for a connection to be made to this socket and accepts it.
void	bind(SocketAddress endpoint, int backlog) Binds the ServerSocket to a specific address (IP address and port number).
void	bind(SocketAddress endpoint) Binds the ServerSocket to a specific address (IP address and port number).
void	close() Closes this socket.
ServerSocketChannel	getChannel() Returns the unique ServerSocketChannel object associated with this socket, if any.