What happens if lines shown by an arrow in the class code (D…

Whаt hаppens if lines shоwn by аn arrоw in the class cоde (Demo3, below) are changed to the following:  public static    void add(GenericStack  stack1, GenericeStack  stack2) public class Demo3 { public static void main(String[] args) {  GenericStack stack1 = new GenericStack();   GenericStack stack2 = new GenericStack();  stack2.push("Java");  stack2.push(2);  stack1.push("Sun");  add(stack1, stack2);  WildCardDemo2.print(stack2); }----> public static   void add(GenericStack  stack1, GenericStack