Please enable JavaScript to use CodeHS

AP CSA: VAR-2.D.7

CodeHS Lessons

The following ArrayList methods—including what they do and when they are used—are part of the Java Quick Reference— ● int size()- Returns the number of elements in the list ● int size()- Returns the number of elements in the list ● void add(int index, E obj) - Inserts obj at position index (0 <= index <= size), moving elements at position index and higher to the right (adds 1 to their indices) and adds 1 to size ● E get(int index) - Returns the element at position index in the list ● E set(int index, E obj)— Replaces the element at position index with obj; returns the element formerly at position index ● E remove(int index)— Removes element from position index, moving elements at position index + 1 and higher to the left (subtracts 1 from their indices) and subtracts 1 from size; returns the element formerly at position index

Standard
7.2 ArrayList Methods
Standard
5.5 ArrayList Methods
Standard
8.5 ArrayList Methods
Standard
7.5 ArrayList Methods
Standard
14.2 ArrayList Methods
Standard
13.2 ArrayList Methods
Standard
7.5 ArrayList Methods