Sockets in nach0s
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Sockets in nach0s

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Sockets in nach0s Sockets in nach0s Presentation Transcript

  • SOCKETS IN NACH0S
      Socket types:
    • STREAM- Uses TCP which is realiable, stream oriented protocol.
    • RAW- Provides RAW data transfer directly over IP protocol.
    • DATAGRAM- Message oriented protocol.
    View slide
  • SOCKETS IN NACH0S
      Socket use:
    • Unicast View slide
    • Multicast
    • Broadcast
    • Loopback
  • SOCKETS IN NACH0S
      Programming Client-Servidor in JAVA
    • All the class located in the java.net package.
    • Stream classes are in the java.io package.
  • SOCKETS IN NACHOS
      How open a socket?
    • For programming a client, create an object of Socket class.
    Socket Client; try { Client = new Socket("Machine name", PortNumber); } catch (IOException e) { System.out.println(e); }
  • SOCKETS IN NACH0S
    • For programinng a server, in this part how you open a socket.
    ServerSocket Service; try { Service = new ServerSocket (PortNumber); } catch (IOException e) { System.out.println(e); }
    • When implementing a server you also need create a socket object.
    Socket clientSocket = null; try { clientSocket = Service.accept(); } catch (IOException e) { System.out.println(e); } SOCKETS IN NACH0S
  • SOCKETS IN NACH0S
      How to create an imput Stream ?
    • You can use the DataImputStream class .
    DataInputStream input; try { input = new DataInputStream (Client.getInputStream()); } catch (IOException e) { System.out.println(e); }
  • SOCKETS IN NACH0S
      How to create an output Stream ?
    • To the server socket using the class PrintStream or DataoutputStream of java.io
    PrintStream output; try { output = new PrintStream (Client.getOutputStream()); } catch (IOException e) { System.out.println(e); }
  • SOCKETS IN NACH0S
      How to close socket?
    • You should always close the output and input stream before you close the socket.
    try { output.close (); input.close (); Client.close(); } catch (IOException e) { System.out.println(e); }