Learn Intermediate Java: Serialization

                                
class Person implements Serializable {
  private String name;
  private int age;
  // Ensure that all fields are serializable
}

                              

                                
ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("person.ser"));
out.writeObject(person);
out.close();

ObjectInputStream in = new ObjectInputStream(new FileInputStream("person.ser"));
Person person = (Person) in.readObject();
in.close();

                              

                                
private void writeObject(ObjectOutputStream oos) throws IOException {
oos.defaultWriteObject();
// Custom serialization code
}

private void readObject(ObjectInputStream ois) throws IOException, ClassNotFoundException {
ois.defaultReadObject();
// Custom deserialization code
}

                              

                                
ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("data.ser"));
out.writeObject(myObject);
out.close();

                              

                                
private static final long serialVersionUID = 1L;

                              

                                
class Employee implements Serializable {
  private String name;
  private transient double salary;
  // 'transient' fields are not serialized
}

                              

                                
ObjectInputStream in = new ObjectInputStream(new FileInputStream("employee.ser"));
Employee employee = (Employee) in.readObject();
in.close();

                              

                                
class Example implements Serializable {
  private static final long serialVersionUID = 1L;
  private transient int tempData;
  private String data;
  // 'tempData' will not be serialized
}