1  import java.io.*;
  2  import java.net.*;
  3  
  4  public class StudentServer {
  5    private ObjectOutputStream outputToFile;
  6    private ObjectInputStream inputFromClient;
  7  
  8    public static void main(String[] args) {
  9      new StudentServer();
 10    }
 11  
 12    public StudentServer() {
 13      try {
 14        // Create a server socket
 15        ServerSocket serverSocket = new ServerSocket(8001);
 16        System.out.println("Server started ");
 17  
 18        // Create an object ouput stream
 19        outputToFile = new ObjectOutputStream(
 20          new FileOutputStream("student.dat", true));
 21  
 22        while (true) {
 23          // Listen for a new connection request
 24          Socket socket = serverSocket.accept();
 25  
 26          // Create an input stream from the socket
 27          inputFromClient =
 28            new ObjectInputStream(socket.getInputStream());
 29  
 30          // Read from input
 31          Object object = inputFromClient.readObject();
 32  
 33          // Write to the file
 34          outputToFile.writeObject(object);
 35          System.out.println("A new student object is stored");
 36        }
 37      }
 38      catch(ClassNotFoundException ex) {
 39        ex.printStackTrace();
 40      }
 41      catch(IOException ex) {
 42        ex.printStackTrace();
 43      }
 44      finally {
 45        try {
 46          inputFromClient.close();
 47          outputToFile.close();
 48        }
 49        catch (Exception ex) {
 50          ex.printStackTrace();
 51        }
 52      }
 53    }
 54  }