Question

I’ve an ArrayList in Java of my class ‘Bomb’.

This class has a method ‘isExploded’, this method will return true if the bomb has been exploded, else false.

Now I’m trying to iterate through this arraylist, call this method isExploded and remove the element from the list if it returns true.

I know how to iterate:

    for (Iterator i = bombGrid.listIterator(); i.hasNext();) {
    if () {         
        i.remove();
}

But I’ve no idea how to access the method isExploded of the Bomb class itself via the iterator. Does anyone know the answer to this?

Sincerely,

Luxo

Answer 1

You’ll need to get the Bomb using next :

for (Iterator i = bombGrid.listIterator(); i.hasNext();) {
   Bomb bomb = (Bomb) i.next(); 
   if (bomb.isExploded()) i.remove();
}

Or if you can get an Iterator<Bomb> from your bombGrid (is it an ArrayList<Bomb> ?):

Iterator<Bomb> i = bombGrid.listIterator();
while (i.hasNext()) {
   Bomb bomb = i.next(); 
   if (bomb.isExploded()) i.remove();
}

This supposes your iterator supports remove, which is the case for example by the one given by an ArrayList.