func ExampleLoop() {
s := stack.EmptyStack()
for i := 1; i < 6; i++ {
s.Push(i)
}
sum := 0
for !s.Empty() {
var val int = s.Pop().(int)
sum += val
}
fmt.Println(sum)
// Output: 15
}
func Example() {
s := stack.EmptyStack()
s.Push(0)
s.Push(1)
s.Push(2)
first := s.Pop()
second := s.Pop()
third := s.Pop()
fmt.Println(first, second, third)
// Output: 2 1 0
}