AP CS A Vocab Review

A object is an ________ of a class

What is the difference between static method and static variable?

• Static method is a method that can be called without creating an object of the class, static variable cannot be shared by all instances of a class.

• They're the same.

• Static method is a method that can be called without creating an object of the class, static variable can be shared by all instances of a class.

• Static method is a method that cannot be called without creating an object of the class, static variable can be shared by all instances of a class.

To instantiate means to ____ the constructor to create an object

An instance variable is a variable defined in a _____ that represents an attribute of an object

Choose the correct vocabulary term for the following definition: [vocab word] is where a variable can be used

• state

• scope

• library

• accessor method

Polymorphism is where the same object or method has more than one form

• True

• False

Column-major order: traversing a 2D array from ____ __ _____

Recursion is when a method calls ______

What is the correct definition for Selection Sort?

• a sorting algorithm that will select the smallest element from a sorted array in each iteration and places that element at the beginning of the unsorted array

• a searching algorithm that will select the smallest element from an unsorted array in each iteration and places that element at the beginning of the unsorted array

• a sorting algorithm that will select the smallest element from an unsorted array in each iteration and places that element at the beginning of the unsorted array

Instance method is a method that requires an object of the class to be created before it can be called

• True

• False