private static void withoutGenerics() {
		Container c = new Container();
		
		String s = new String("it is a string");
		c.setInternal(s);
		//...
		
		String internal2 = (String) c.getInternal();
		System.out.println(internal2);
		
		c.setInternal(new Integer(5));
		// ...
//		String internal3 = (String) c.getInternal();
		
		Vector v = new Vector();
		v.add(new Integer(1));
		v.add(new Double(0.1));
		
		for (int i = 0; i < v.size(); i++) {
			Integer o = (Integer) v.get(i);
		}
	}