What is a ServerSocket in Java?
ServerSocket is a java.net class that provides a system-independent implementation of the server side of a client/server socket connection. The accept method waits until a client starts up and requests a connection on the host and port of this server.
How do I use ServerSocket in Java?
1. ServerSocket API
- Create a server socket and bind it to a specific port number.
- Listen for a connection from the client and accept it.
- Read data from the client via an InputStream obtained from the client socket.
- Send data to the client via the client socket’s OutputStream.
- Close the connection with the client.
Which methods should be used in ServerSocket object?
Method Summary
| Modifier and Type | Method and Description |
|---|---|
| void | bind(SocketAddress endpoint, int backlog) 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. |
What is difference between socket () and ServerSocket () class?
The Socket class is used to communicate client and server. Through this class, we can read and write message. The ServerSocket class is used at server-side.
What does the ServerSocket method accept () return?
Apparently, it returns a Socket object.
What is common in socket and ServerSocket?
Socket class represents a socket, and the java. net. ServerSocket class provides a mechanism for the server program to listen for clients and establish connections with them. 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.
What are the differences of handling socket and ServerSocket?
sockets guarantee data arrives in the correct order, the UDP-type do not. serversocket is listening. serverside, which sends requests to clients side socket and waits for response from client.
What is the use of socket and ServerSocket?
Socket and ServerSocket classes are used for connection-oriented socket programming and DatagramSocket and DatagramPacket classes are used for connection-less socket programming. The client in socket programming must know two information: IP Address of Server, and. Port number.
What are the differences of handling socket and ServerSocket Java?
What happens if ServerSocket is not able to listen on the specified port?
What happens if ServerSocket is not able to listen on the specified port? Explanation: public ServerSocket() creates an unbound server socket. It throws IOException if specified port is busy when opening the socket. If address is null, the system will pick an ephemeral port and valid local address to bind socket.
What is socket and ServerSocket?
What do you need to know about Java serversocket?
The serversocket class are mainly with the connection-oriented socket programs. When we connect the applications with the help of socket, we need to get the information’s like IP Address of the servers and port numbers which has to be connected with the applications for a specified way so that the data transmission will not be interpreted.
How is the work of a server socket performed?
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. Creates an unbound server socket. Creates a server socket, bound to the specified port.
What does a port number of 0 mean in serversocket?
ServerSocket public ServerSocket(int port) throws IOException Creates a server socket, bound to the specified port. A port number of 0 means that the port number is automatically allocated, typically from an ephemeral port range. This port number can then be retrieved by calling getLocalPort.
What is a socket connection in java.net?
In java programming technology, the package is called java.net.* In that each version of java it may vary the classes in the package the server socket connection is a basic networking feature for file transmission, upload and even though we have sent an email from one client to another client with the help of socket connections