write an object java in a file

1package com.mkyong;
2
3package com.mkyong;
4
5import java.io.File;
6import java.io.FileInputStream;
7import java.io.FileNotFoundException;
8import java.io.FileOutputStream;
9import java.io.IOException;
10import java.io.ObjectInputStream;
11import java.io.ObjectOutputStream;
12
13public class WriterReader {
14
15	public static void main(String[] args) {
16
17		Person p1 = new Person("John", 30, "Male");
18		Person p2 = new Person("Rachel", 25, "Female");
19
20		try {
21			FileOutputStream f = new FileOutputStream(new File("myObjects.txt"));
22			ObjectOutputStream o = new ObjectOutputStream(f);
23
24			// Write objects to file
25			o.writeObject(p1);
26			o.writeObject(p2);
27
28			o.close();
29			f.close();
30
31			FileInputStream fi = new FileInputStream(new File("myObjects.txt"));
32			ObjectInputStream oi = new ObjectInputStream(fi);
33
34			// Read objects
35			Person pr1 = (Person) oi.readObject();
36			Person pr2 = (Person) oi.readObject();
37
38			System.out.println(pr1.toString());
39			System.out.println(pr2.toString());
40
41			oi.close();
42			fi.close();
43
44		} catch (FileNotFoundException e) {
45			System.out.println("File not found");
46		} catch (IOException e) {
47			System.out.println("Error initializing stream");
48		} catch (ClassNotFoundException e) {
49			// TODO Auto-generated catch block
50			e.printStackTrace();
51		}
52
53	}
54
55}