loop through and clear a bunch of arraylists java code example

Example 1: remove arraylist index in for loop

for (int i = data.size()-1; i >= 0; i--){
    if (data.get(i).contains(element)){
            data.remove(i);
    }
 }

Example 2: java remove from arraylist while iterating

ListIterator<Book> iter = books.listIterator();
while(iter.hasNext()){
    if(iter.next().getIsbn().equals(isbn)){
        iter.remove();
    }
}