Quelle est la sortie de ce programme (Pile générique)?
import java.util.Stack;
class PileGeneric <E> {
      private 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 <String> pg = new PileGeneric <>();
         pg.push("Hello");
         System.out.println(pg.pop());
     }
}