Glen,

If you're looking to eliminate the warning, then specify <Object> as
your container type:

public class MyQueue {
 private ArrayList<Object> list;
 public MyQueue() { list = new ArrayList<Object>();
 public static void main(String[] args) { }
 public void add(Object tmp) {
   list.add(tmp);
 }
 public void print() {
   for (int i=0;i<list.size();i++) {
       System.out.println(list.get(i));
   }
 }
}

However, to make best use of Java 1.5 generics, tie it together with a
unified parameter type (T):

public class MyQueue<T> {
 private ArrayList<T> list;
 public MyQueue() {
   list = new ArrayList<T>();
 }
 public static void main(String[] args) { }
 public void add(T tmp) {
   list.add(tmp);
 }
 public void print() {
   for (int i=0;i<list.size();i++) {
       System.out.println(list.get(i));
   }
 }
}

To use:
 MyQueue<String> queue = new MyQueue<String>();
 queue.add("Hello there.");

--Dan