コード例 #1
0
  public static void main1(String[] args) throws IOException, ClassNotFoundException {
    Employee harry = new Employee("Harry Hacker", 50000, 1989, 10, 1);
    Manager carl = new Manager("Carl Cracker", 80000, 1987, 12, 15);
    carl.setSecretary(harry);
    Manager tony = new Manager("Tony Tester", 40000, 1990, 3, 15);
    tony.setSecretary(harry);

    Employee[] staff = new Employee[3];
    staff[0] = carl;
    staff[1] = harry;
    staff[2] = tony;

    // save all employee records to the file employee.dat
    try (ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("employee.dat"))) {
      out.writeObject(staff);
    }
    try (ObjectInputStream in = new ObjectInputStream(new FileInputStream("employee.dat"))) {
      // retrieve all records into a new array
      Employee[] newStaff = (Employee[]) in.readObject();
      //          raise secretary's salary
      newStaff[1].raiseSalary(10);
      // print the newly read employee records
      for (Employee e : newStaff) System.out.println(e);
    }
  }
コード例 #2
0
  public static void main(String[] args) throws Exception {
    Orientation original = Orientation.HORIZONTAL;
    Orientation saved;

    try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("employee.dat"))) {
      oos.writeObject(original); // writing over.
    }
    try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream("employee.dat")); ) {
      saved = (Orientation) ois.readObject();
    }
    if (saved == Orientation.HORIZONTAL) {
      out.println("bingo");
    } else {
      out.println("Error");
    }
  }