深拷贝

<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> --> import  java.io. * ;

public   class  ObjectCloner
{
    //  so that nobody can accidentally create an ObjectCloner object
    private  ObjectCloner(){}
    //  returns a deep copy of an object
    static   public  Object deepCopy(Object oldObj)  throws  Exception
   {
      ObjectOutputStream oos  =   null ;
      ObjectInputStream ois  =   null ;
       try
      {
         ByteArrayOutputStream bos  =   new  ByteArrayOutputStream(); 
         oos  =   new  ObjectOutputStream(bos); 
          //  serialize and pass the object
         oos.writeObject(oldObj);   
         oos.flush();               
         ByteArrayInputStream bin  =   new  ByteArrayInputStream(bos.toByteArray()); 
         ois  =   new  ObjectInputStream(bin);
          //  return the new object
          return  ois.readObject();
      }
       catch (Exception e)
      {
         System.out.println( " Exception in ObjectCloner =  "   +  e);
          throw (e);
      }
       finally
      {
         oos.close();
         ois.close();
      }
   }
   
}