Quelle est la sortie de ce programme (Pile générique)?
import java.util.Stack;
class PileGeneric <E> 
{
     Stack <E> pile = new Stack <E>();
     public E pop()
     {
          E obj = pile.pop();
          return obj;
     }
     public void push(E obj)
     {
         pile.push(obj);
     }
}
public class Test
{
     public static void main(String args[])
     {
         PileGeneric <Integer> pg = new PileGeneric <>();
         pg.push(44);
         System.out.println(pg.pop());
     }
}