Object Streams and Serialization : Serialization « File « SCJP

1. SCJP
2. File
3. Serialization

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

public class MainClass {
  public static void main(String[] argv)throws Exception {

    StringBuilder writeMe = new StringBuilder();
    FileOutputStream fos = new FileOutputStream("sbuf.ser");
    ObjectOutputStream oos = new ObjectOutputStream(fos);
    oos.writeObject(writeMe);
    oos.close();
    fos.close();

    FileInputStream fis = new FileInputStream("sbuf.ser");
    ObjectInputStream ois = new ObjectInputStream(fis);
    StringBuffer sb = (StringBuffer) ois.readObject();
    ois.close();
    fis.close();

  }
}