→ Week 6 Inheritance Vector, ArrayList And LinkedList → Start Learning / Flashcards Téléchargement MP3

question		réponse
What are some of the problems of array structures? commencer à apprendre		all elements must be same type, number of elements predetermined, inefficent
what does ArrayIndexOutOfBoundsException message indicate? commencer à apprendre		you are making reference to an array index that is larger or smaller than the actual array.
what is a Vector commencer à apprendre		the vector class in java is a kind of list that can grow as needed
What is a linkedList commencer à apprendre		A linked list is a data structure that consists of a sequence of nodes, where each node contains some data and the address of the next node.
what will happen when you add an 11th item to: Vector(10); commencer à apprendre		the vector will double its allocated space
when would you use a vector? commencer à apprendre		if a thread-safe implementation is needed
if a thread-safe implementation is not needed what class would you use inplace of vector? commencer à apprendre		ArrayList
are linked lists synchronised or unsynchronised? commencer à apprendre		unsynchronised
what code do you use to rentern the number of items in an array list? commencer à apprendre		int size();
what does Object get(int index); do for ArrayLists? commencer à apprendre		//returns element at index without removing it
what does Object remove(int index) do for ArrayLists? commencer à apprendre		//removes element at index and shifts up rest

Week 6 Inheritance Vector, ArrayList and LinkedList