CodeHS 4.5 Writing Classes and Instance Methods

What is an instance variable?

• a variable that stores the state of an object

• a variable that defines the behaviors of an object

• a variable that creates an instance of an object

• an object

How do we define the behavior of an object?

• instance methods

• constructors

• client class

• instance variables

When the video on CodeHS talks about visibility, what are they talking about?

• the first keyword in a method that determines whether client classes can use the method

• what Java sees the method as--the type of data that will be returned

• whether the method uses data hiding

• whether other programmers can see your code

What is the return type of a method that doesn't return a value?

• void

• String

• public

• private

Check everything that's true about a method's name.

• It has to start with a letter

• It has to be unique in the class

• It can only have letters, numbers, and the underscore _ character

• It needs to have parentheses after it

What is a parameter?

• inputs to a method

• an instance variable

• an instance method

• Rick Astley