# Serialize

public void serializable() {
  Member member = new Member("김명석", 10);

  byte[] serializable;

  String serialStr = null;

  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  try (ObjectOutputStream oos = new ObjectOutputStream(baos)) {

      oos.writeObject(member);

      serializable = baos.toByteArray();

      serialStr = Base64.getEncoder().encodeToString(serializable);

      System.out.println(serialStr);

  } catch (Exception e) {
      e.printStackTrace();
  }

  byte[] seraialDecode = Base64.getDecoder().decode(serialStr);

  ByteArrayInputStream bais = new ByteArrayInputStream(seraialDecode);

  try (ObjectInputStream ois = new ObjectInputStream(bais)) {

      Object objMember = ois.readObject();

      Member om = (Member) objMember;

      System.out.println(om.toString());

  } catch (Exception e) {
      e.printStackTrace();
  }
}

static class Member implements Serializable {
  private static String name;
  private static int age;

  public Member(String name, int age) {
      this.name = name;
      this.age = age;
  }

  @Override
  public String toString() {
      return String.format("이름 : %s, 나이 : %d", name, age);
  }
}

public class User implements Serializable {
    private static final long serialVersionUID = 100000000000000001L;

    private String username;
    private transient String passWord;

    public User(String username, String password) {
        this.username = username;
        this.password = password;
    }

    public String getUsername() {
        return username;
    }

    public String getPassword() {
        return password;
    }
}

public class UserTest {
    @Test
    public void transientField() throws IOException, ClassNotFoundException {
        final User user = new User("rrest", "1234");

        final FileOutputStream fos = new FileOutputStream("/tmp/user");
        final ObjectOutputStream oos = new ObjectOutputStream(fos);

        oos.writeObject(user);
        oos.flush();
        oos.close();
        fos.close();

        final FileInputStream fis = new FileInputStream("/tmp/user");
        final ObjectInputStream ois = new 
    }
}