Temp.java

import java.util.*;
import java.io.*;

public class Temp {
    public enum TYPE {
        INT, LONG, FLOAT, DOUBLE, STRING, DATE, DECIMAL, CHAR, VARCHAR
    }

    private List<TYPE> list;

    Temp() {
        list = new ArrayList<TYPE>();
        list.add(TYPE.INT);
        list.add(TYPE.DOUBLE);
        list.add(TYPE.DATE);
        list.add(TYPE.INT);
        list.add(TYPE.DATE);
    }

    public static void main(String args[]) {
        Temp t = new Temp();
        for (TYPE type : t.list) {
            System.out.println(type);
        }

        System.out.println("-----serialize List-----");
        String fileName = "temp";
        try {
            FileOutputStream fos = new FileOutputStream(fileName);
            ObjectOutputStream oos = new ObjectOutputStream(fos);
            oos.writeObject(t.list);
            fos.close();

            System.out.println("-----serialize finish-----");
            FileInputStream fis = new FileInputStream(fileName);
            ObjectInputStream ois = new ObjectInputStream(fis);
            Object obj = ois.readObject();
            ois.close();
            List<TYPE> list = (List<TYPE>) obj;
            for (TYPE type : list) {
                System.out.println(type);
            }
        } catch (IOException e) {
        } catch (ClassNotFoundException e) {
        }

        System.out.println("-----serialize individual-----");
        try {
            FileOutputStream fos = new FileOutputStream(fileName);
            ObjectOutputStream oos = new ObjectOutputStream(fos);
            oos.writeObject(TYPE.INT);
            oos.writeObject(TYPE.LONG);
            oos.writeObject(TYPE.DATE);
            fos.close();

            System.out.println("-----serialize finish-----");
            FileInputStream fis = new FileInputStream(fileName);
            ObjectInputStream ois = new ObjectInputStream(fis);
            Object obj;
            while ((obj = ois.readObject()) != null) {
                System.out.println((TYPE)obj);
            }
            ois.close();
        } catch (IOException e) {
        } catch (ClassNotFoundException e) {
        }
    }
}