→ Week 6 Inheritance Vector, ArrayList And LinkedList → Comece a aprender / Download de MP3 Flashcards

questão		resposta
What are some of the problems of array structures? começar a aprender		all elements must be same type, number of elements predetermined, inefficent
what does ArrayIndexOutOfBoundsException message indicate? começar a aprender		you are making reference to an array index that is larger or smaller than the actual array.
what is a Vector começar a aprender		the vector class in java is a kind of list that can grow as needed
What is a linkedList começar a aprender		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); começar a aprender		the vector will double its allocated space
when would you use a vector? começar a aprender		if a thread-safe implementation is needed
if a thread-safe implementation is not needed what class would you use inplace of vector? começar a aprender		ArrayList
are linked lists synchronised or unsynchronised? começar a aprender		unsynchronised
what code do you use to rentern the number of items in an array list? começar a aprender		int size();
what does Object get(int index); do for ArrayLists? começar a aprender		//returns element at index without removing it
what does Object remove(int index) do for ArrayLists? começar a aprender		//removes element at index and shifts up rest

Week 6 Inheritance Vector, ArrayList and LinkedList