socket layer is a interface between sender server and the receiving server

1)Socket 2)Server Socket Server socket is used for normal two-way socket communication. Socket class allows us to read and write through the sockets. getInputStream() and getOutputStream() are the two methods available in socket class.

SOCKET

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Both the client and the server create a socket, but only the server binds the socket to a local endpoint. The server can then subsequently do a blocking readcall in which it waits for incoming data from any client. Likewise, after creating the socket, the client simply does a blocking call to write data to the server. There is no need to close a connection.