public static void readFileOaks(ArrayList<Oak> list1) {
		{
			ObjectInputStream in = null;
			try {
				list1.removeAll(list1);
				in = new ObjectInputStream(new BufferedInputStream(new FileInputStream("fw.txt")));
				list1 = (ArrayList<Oak>) in.readObject();
				System.out.println(list1);
				// System.out.println(list1);
			} catch (IOException e) {
				System.err.println(e);
			} catch (ClassNotFoundException e) {
				System.err.println(e);
			} finally {
				try {
					in.close();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}
	}