serialize simple demo (ObjectInputStream/ObjectOutputStream)

import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;public class ObjectSerializeUtil {public static void write(String filename,Object obj) throws Exception{FileOutputStream fos = new FileOutputStream(filename);ObjectOutputStream oos = new ObjectOutputStream(fos);oos.writeObject(obj);oos.close();fos.close();}public static Object read(String filename) throws Exception{FileInputStream fis = new FileInputStream(filename);ObjectInputStream ois = new ObjectInputStream(fis);Object obj = ois.readObject();ois.close();fis.close();return obj;}}