$2.$ You send messages or information to an object through its $\_\_\_\_\_\_\_\_\_.$

A$.$ fields

B$.$ methods

C$.$ classes

D$.$ type

$4.$ The body of a class is always written $\_\_\_\_\_\_\_\_\_.$

A$.$ in a single line, as the first statement in a class

B$.$ within parentheses

C$.$ between curly braces

D$.$ as a method call

$6.$ The concept of allowing a class$$s private data to be changed only by a class$$s own methods is known as $\_\_\_\_\_\_\_\_\_.$

A$.$ structured logic

B$.$ object orientation

C$.$ information hiding

D$.$ data masking

$8.$ If a class is named Student, the class constructor name is $\_\_\_\_\_\_\_\_\_.$

A$.$ any legal Java identifier

B$.$ any legal Java identifier that begins with S

C$.$ StudentConstructor$()$

D$.$ Student$()$

$10.$ If you declare a variable as an instance variable within a class, and you declare and use the same variable name within a method of the class, then within the method, $\_\_\_\_\_\_\_\_\_.$

A$.$ the variable used inside the method takes precedence

B$.$ the class instance variable takes precedence

C$.$ the two variables refer to a single memory address

D$.$ an error will occur

$12.$ A constructor $\_\_\_\_\_\_\_\_\_$ overloaded.

A$.$ must be

B$.$ cannot be

C$.$ can be

D$.$ is always automatically

$14.$ If you create a class that contains one method, and you instantiate two objects, you usually store $\_\_\_\_\_\_\_\_\_$ for use with the objects.

A$.$ one copy of the method

B$.$ two copies of the method

C$.$ two different methods containing two different this references

D$.$ data only $($the methods are not stored$)$

$16.$ Methods that you reference with individual objects are $\_\_\_\_\_\_\_\_\_.$

A$.$ private

B$.$ public

C$.$ static

D$.$ nonstatic

$18.$ The keyword final used with a variable declaration indicates $\_\_\_\_\_\_\_\_\_.$

A$.$ the end of the program

B$.$ it is in a static method

C$.$ a symbolic constant

D$.$ that no more variables will be declared in the program

$20.$ Which of the following expressions correctly returns an integer that represents the month of a LocalDate object named hireDate?

A$.$ getMonth$($hireDate$)$

B$.$ getMonthValue$($hireDate$)$

C$.$ hireDate.getMonthValue$()$

D$.$ hireDate.setMonthValue$()$