Example usage for java.io ObjectOutputStream ObjectOutputStream

Introduction

In this page you can find the example usage for java.io ObjectOutputStream ObjectOutputStream.

Prototype

public ObjectOutputStream(OutputStream out) throws IOException

Source Link

Document

Creates an ObjectOutputStream that writes to the specified OutputStream.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {

    String s = "Hello World from java2s.com";

    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    // write something in the file
    oout.writeUTF(s);/*  w  w  w. j  a va2s .c  o  m*/
    oout.flush();
    oout.close();
    // create an ObjectInputStream for the file we created before
    Main ois = new Main(new FileInputStream("test.txt"));

    // read and print an object and cast it as string
    System.out.println((String) ois.readUTF());

    // get the class for string and print the name
    ObjectStreamClass streamClass = ObjectStreamClass.lookup(Integer.class);
    System.out.println(ois.resolveClass(streamClass).getName());
    ois.close();
}

From source file:ObjectWriter.java

public static void main(String[] arguments) {
    Message mess = new Message();
    String author = "London";
    String recipient = "G, B";
    String[] letter = { "Merry Christmas." };
    Date now = new Date();
    mess.writeMessage(author, recipient, now, letter);
    try {/* w  w  w .  j  a  va  2 s .c  o m*/
        FileOutputStream fo = new FileOutputStream("Message.obj");
        ObjectOutputStream oo = new ObjectOutputStream(fo);
        oo.writeObject(mess);
        oo.close();
        System.out.println("Object created successfully.");
    } catch (IOException e) {
        System.out.println("Error - " + e.toString());
    }
}

From source file:LoopingSocketServer.java

public static void main(String args[]) throws Exception {
    ServerSocket servSocket;/*ww  w.  j  a  va  2s. co m*/
    Socket fromClientSocket;
    int cTosPortNumber = 1777;
    String str;

    servSocket = new ServerSocket(cTosPortNumber);
    System.out.println("Waiting for a connection on " + cTosPortNumber);
    fromClientSocket = servSocket.accept();
    System.out.println("fromClientSocket accepted");

    ObjectOutputStream oos = new ObjectOutputStream(fromClientSocket.getOutputStream());

    ObjectInputStream ois = new ObjectInputStream(fromClientSocket.getInputStream());

    while ((str = (String) ois.readObject()) != null) {
        System.out.println("The message from client:  " + str);

        if (str.equals("bye")) {
            oos.writeObject("bye bye");
            break;
        } else {
            str = "Server returns " + str;
            oos.writeObject(str);
        }

    }
    oos.close();
    fromClientSocket.close();
}

From source file:SerialDemo.java

static public void main(String[] args) {
    try {//from  www.  j  a va  2  s. c  om
        { // Save a SerialDemo object with a value of 5.
            FileOutputStream f = new FileOutputStream("/tmp/testing");
            ObjectOutputStream s = new ObjectOutputStream(f);
            SerialDemo d = new SerialDemo(5);

            s.writeObject(d);
            s.flush();
        }
        { // Now restore it and look at the value.
            FileInputStream f = new FileInputStream("/tmp/testing");
            ObjectInputStream s = new ObjectInputStream(f);
            SerialDemo d = (SerialDemo) s.readObject();

            System.out.println("SerialDemo.getVal() is: " + d.getVal());
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    String elements[] = { "I", "P", "E", "G", "P" };
    Set set = new HashSet(Arrays.asList(elements));
    Set set2 = ((Set) ((HashSet) set).clone());
    System.out.println(set2);//from  www . j  a  va  2 s .c  o m
    FileOutputStream fos = new FileOutputStream("set.ser");
    ObjectOutputStream oos = new ObjectOutputStream(fos);
    oos.writeObject(set);
    oos.close();
    FileInputStream fis = new FileInputStream("set.ser");
    ObjectInputStream ois = new ObjectInputStream(fis);
    Set set3 = (Set) ois.readObject();
    ois.close();
    System.out.println(set3);
}

From source file:SimpleSocketServer.java

  public static void main(String args[]) throws Exception {
  ServerSocket serverSocket;/*  w w  w. j a v  a2  s.c  o m*/
  int portNumber = 1777;
  Socket socket;
  String str;

  str = " <?xml version=\"1.0\" encoding=\"UTF-8\"?>";
  str += "<ticketRequest><customer custID=\"1\">";
  str += "</ticketRequest>";

  serverSocket = new ServerSocket(portNumber);

  System.out.println("Waiting for a connection on " + portNumber);

  socket = serverSocket.accept();

  ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());

  oos.writeObject(str);

  oos.close();

  socket.close();

}

From source file:EmployeeInit.java

public static void main(String[] args) throws Exception {
    Connection con;//  w w  w  .ja  v a 2s . c o m
    con = DriverManager.getConnection("jdbc:derby://localhost:1527/" + "c:\\db\\employee");

    PreparedStatement ps;
    ps = con.prepareStatement("insert into employee(name,photo) " + "values(?,?)");
    ps.setString(1, "Duke");

    Blob blob = con.createBlob();
    ImageIcon ii = new ImageIcon("duke.png");

    ObjectOutputStream oos;
    oos = new ObjectOutputStream(blob.setBinaryStream(1));
    oos.writeObject(ii);
    oos.close();
    ps.setBlob(2, blob);
    ps.execute();
    blob.free();
    ps.close();
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    String URL = "jdbc:odbc:dbname";
    Connection dbConn = DriverManager.getConnection(URL, "user", "passw");
    Employee employee = new Employee(42, "AA", 9);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(employee);/*  w  w  w . j  a  v a2s .  c  o m*/
    byte[] employeeAsBytes = baos.toByteArray();
    PreparedStatement pstmt = dbConn.prepareStatement("INSERT INTO EMPLOYEE (emp) VALUES(?)");
    ByteArrayInputStream bais = new ByteArrayInputStream(employeeAsBytes);
    pstmt.setBinaryStream(1, bais, employeeAsBytes.length);
    pstmt.executeUpdate();
    pstmt.close();
    Statement stmt = dbConn.createStatement();
    ResultSet rs = stmt.executeQuery("SELECT emp FROM Employee");
    while (rs.next()) {
        byte[] st = (byte[]) rs.getObject(1);
        ByteArrayInputStream baip = new ByteArrayInputStream(st);
        ObjectInputStream ois = new ObjectInputStream(baip);
        Employee emp = (Employee) ois.readObject();
    }
    stmt.close();
    rs.close();
    dbConn.close();
}

From source file:Employee.java

public static void main(String[] args) {
    Employee e = new Employee();
    e.name = "A";
    e.address = "B";
    e.SSN = 11111;/*from  w  ww .  ja va2s.  c  o  m*/
    e.number = 101;
    try {
        FileOutputStream fileOut = new FileOutputStream("employee.ser");
        ObjectOutputStream out = new ObjectOutputStream(fileOut);
        out.writeObject(e);
        out.close();
        fileOut.close();
    } catch (IOException i) {
        i.printStackTrace();
    }
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    KeyGenerator kg = KeyGenerator.getInstance("DES");
    kg.init(new SecureRandom());
    SecretKey key = kg.generateKey();
    SecretKeyFactory skf = SecretKeyFactory.getInstance("DES");
    Class spec = Class.forName("javax.crypto.spec.DESKeySpec");
    DESKeySpec ks = (DESKeySpec) skf.getKeySpec(key, spec);
    ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("keyfile"));
    oos.writeObject(ks.getKey());// w ww .ja  v  a 2 s.c o m

    Cipher c = Cipher.getInstance("DES/CFB8/NoPadding");
    c.init(Cipher.ENCRYPT_MODE, key);
    CipherOutputStream cos = new CipherOutputStream(new FileOutputStream("ciphertext"), c);
    PrintWriter pw = new PrintWriter(new OutputStreamWriter(cos));
    pw.println("Stand and unfold yourself");
    pw.close();
    oos.writeObject(c.getIV());
    oos.close();
}