Запись и чтение карты (HashMap) в сериализованном виде

//Запись и чтение карты (HashMap) в сериализованном виде
package readwrite;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.HashMap;
import java.util.Map;


public class readWriteMap {
   static HashMap hm1;
private static  void saveMap(Map tm) throws IOException{
         ObjectOutputStream out = null;
   try
     {
        FileOutputStream fos = new FileOutputStream("/MyDir/map.map");
        ObjectOutputStream oos = new ObjectOutputStream(fos);
        oos.writeObject(tm);
        oos.close();

    }
     catch(IOException ex)
     {
       ex.printStackTrace();
     }
    }
private static  void readMap(Map tm) throws IOException, ClassNotFoundException{
         ObjectOutputStream out = null;
   try
     {
        FileInputStream is = new FileInputStream("/MyDir/map.map");
        ObjectInputStream ois = new ObjectInputStream(is);
       hm1= (HashMap)ois.readObject();
        ois.close();

    }
     catch(IOException ex)
     {
       ex.printStackTrace();
     }
    }
    public static void main(String[] args) throws IOException, ClassNotFoundException {
       HashMap hm=new HashMap();
      hm.put("key", "value");
      saveMap(hm);
       readMap(hm1);
       System.out.println(hm1);
    }

}

05.01.2009