Working with Serialization

public class User implements Serializable {
    private static final long serialVersionUID = 1L;
    private String name;
    private transient String password;   // not serialized
}

try (ObjectInputStream in = new ObjectInputStream(Files.newInputStream(path))) {
    User u = (User) in.readObject();
}

private void writeObject(ObjectOutputStream out) throws IOException {
    out.defaultWriteObject();
    out.writeInt(computedValue);
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
    in.defaultReadObject();
    this.computedValue = in.readInt();
}
private Object readResolve() { return Singleton.INSTANCE; }