→ Week 6 Inheritance Vector, ArrayList And LinkedList → Rozpocznij Naukę / Ściągnij Fiszki MP3

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

Week 6 Inheritance Vector, ArrayList and LinkedList