public void readFileOaks()  {
	{
		try
		{
		//File fw = new File();
			//ArrayList<Oak> tmp = new ArrayList();
			list1.removeAll(list1);
		ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(new FileInputStream("fw.txt")));
	    list1 = (ArrayList<Oak>)in.readObject();
	   // list1.removeAll(list1);
	   // list1.addAll(tmp);
	    //list1.addAll(readObject);
		in.close();
		//System.out.println(readObject);
		}
		catch (InvalidObjectException e){System.err.println(e);}
		catch(InvalidClassException e){System.err.println(e);}
		catch(NotSerializableException e) {System.err.println(e);}
		catch (ObjectStreamException e){System.err.println(e);}
		catch (EOFException e) {System.err.println(e);}
		catch(IOException e) {System.err.println(e);}
		catch(ClassNotFoundException e) {System.err.println(e);}
		}
		
	}