Want to improve this post? Provide detailed answers to this question, including citations and an explanation of why your answer is correct. without enough detail may be edited or deleted. What is the use of the yield keyword in Python? What does it do? For example, I’m trying to understand this code1: def _get_child_candidates(self, distance, … Read more
An Iterable is a simple representation of a series of elements that can be iterated over. It does not have any iteration state such as a “current element”. Instead, it has one method that produces an Iterator. An Iterator is the object with iteration state. It lets you check if it has more elements using hasNext() and move to the next element … Read more
Sure. An iterator is just an implementation of the java.util.Iterator interface. If you’re using an existing iterable object (say, a LinkedList) from java.util, you’ll need to either subclass it and override its iterator function so that you return your own, or provide a means of wrapping a standard iterator in your special Iterator instance (which has the advantage of being more broadly used), … Read more
1) SortedLinkedList extends BasicLinkedList but both have private Node head; private Node tail this is wrong. If you want to inherit those field in the sub class, you should mark the variables as protected in the super class and remove them from the subclass. 2) Same goes for private class Node. You are declaring the Node class in both the SortedLinkedList and BasicLinkedList. … Read more
