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Podcast Making Agile work for data science. Stack Gives Back On the server side, the accept method returns a reference to a new socket on the server that is connected to the client's socket. Each socket has both an OutputStream and an InputStream. TCP is a two-way communication protocol, hence data can be sent across both streams at the same time.
Following are the useful classes providing complete set of methods to implement sockets. ServerSocket class is used by server applications to obtain a port and listen for client requests.
Attempts to create a server socket bound to the specified port. An exception occurs if the port is already bound by another application. Similar to the previous constructor, the backlog parameter specifies how many incoming clients to store in a wait queue. Similar to the previous constructor, the InetAddress parameter specifies the local IP address to bind to. The InetAddress is used for servers that may have multiple IP addresses, allowing the server to specify which of its IP addresses to accept client requests on.
Creates an unbound server socket. When using this constructor, use the bind method when you are ready to bind the server socket. If the ServerSocket constructor does not throw an exception, it means that your application has successfully bound to the specified port and is ready for client requests.
Returns the port that the server socket is listening on. This method is useful if you passed in 0 as the port number in a constructor and let the server find a port for you. Waits for an incoming client. This method blocks until either a client connects to the server on the specified port or the socket times out, assuming that the time-out value has been set using the setSoTimeout method.
Otherwise, this method blocks indefinitely. Binds the socket to the specified server and port in the SocketAddress object. Use this method if you have instantiated the ServerSocket using the no-argument constructor. When the ServerSocket invokes accept , the method does not return until a client connects.
After a client does connect, the ServerSocket creates a new Socket on an unspecified port and returns a reference to this new Socket. A TCP connection now exists between the client and the server, and communication can begin.
Socket class represents the socket that both the client and the server use to communicate with each other. Cloud Computing. Data Science. Angular 7. Machine Learning. Data Structures. Operating System. Computer Network. Compiler Design. Computer Organization. Discrete Mathematics. Ethical Hacking. Computer Graphics. Software Engineering. Web Technology.
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