It is well documented in the manual. An iterator that points to the first of the newly inserted elements. In you case new_foo_it after listOfFoos.insert of a single element, points to the last element of the list, it points newFoo. 1 solved In this C++ code, what element of the list does the iterator refer … Read more
First take the words of str in an array. Then check whether the words in the forward order and the reverse order are same. String[] words = str.split(” “); //splits at spaces boolean flag = true; int i, last = words.length – 1; for(i = 0; i <= last/2; i++){ if(!words[i].equalsIgnoreCase(words[last – i])){ flag = … Read more
From https://docs.oracle.com/javase/7/docs/api/java/util/ConcurrentModificationException.html For example, it is not generally permissible for one thread to modify a Collection while another thread is iterating over it. In general, the results of the iteration are undefined under these circumstances. Some Iterator implementations (including those of all the general purpose collection implementations provided by the JRE) may choose to throw … Read more
It’s pretty much just like the std::list iterator, except the end iterator is where the next pointer is the head of the list, not when it’s NULL. A reference page will tell you what you’re supposed to implement. The underlying representation will be a pointer to a list node, operator* will return a reference to … Read more
Your question isn’t clear, but I suspect the main point you may be missing is that ListIterator.add inserts at the current location: The element is inserted immediately before the next element that would be returned by next(), if any, and after the next element that would be returned by previous(), if any. And also: The … Read more