QUESTION $1$

In the following code example, the underlined portion of the statement is what:

currentStudent $=$ directory.getStudent$($targetID$)$;

An argument

A return type

An object reference

A method

$12$ points

QUESTION $2$

In the following code example, the underlined portion of the statement is what:

bannerDisplay $=$ session.getUserByID$($IDnum$).$getFirstName$()+"\backslash \text{'}$s recent activity:";

A return type

A method call

String concatenation

An argument

$12$ points

QUESTION $3$

In the following code example, the underlined portion of the statement is what:

currentStudent $=$ directory.getStudent$($targetID$)$;

An object reference

A return type

An argument

A method

$12$ points

QUESTION $4$

In the following code example, the underlined portion of the statement is what:

currentStudent $=$ directory.getStudent$($targetID$)$;

A method

An object reference

An argument

A return type

$12$ points

QUESTION $5$

What can be said about the following Java statement:

test $=$ new SimpleDate$()$;

A method with no return value is being called.

An object is being flagged for garbage collection.

The default constructor method is being called.

Arguments are being passed to a method.

$12$ points

QUESTION $6$

The arguments $($data provided to a method that is called$)$ are enclosed in parenthesis that follow the method name.

True

False

$4$ points

QUESTION $7$

Objects which do not have at least one object reference pointing to them are marked for garbage collection.

True

False

$4$ points

QUESTION $8$

Methods which change the value of an object's instance variables are called accessor methods.

True

False

$4$ points

QUESTION $9$

The return value of a method is indicated by either a data type or class type.

True

False

$4$ points

QUESTION $10$

Methods that change or modify the instance variables of a class are called mutator methods.

True

False

$4$ points

QUESTION $11$

An object reference which has been declared but not yet assigned to an object has the literal value null.

True

False

$4$ points

QUESTION $12$

A constructor method is used to assign initial values to the instance variables of a class.

True

False

$4$ points

QUESTION $13$

To call the default constructor method for a class, it is necessary to pass a comma$-$separated list of initial data values $($called an argument list$)$ to assign to the object.

True

False

$4$ points

QUESTION $14$

Which of the following $($select all correct answers$)$ show examples of a method call involving an accessor method:

appointment.setTime$(1500)$;

target $=$ directory.findStudent$($ID$)$;

newStudent.changeName$("$Paul Simon"$)$;

String temp $=$ currentStudent.getName$()$;

$14$ points

QUESTION $15$

Which of the following are likely examples of mutator methods? Select all correct answers.

String name $=$ currentUser.getFirstName$()$;

target $=$ database.lookup$($userID$)$;

currentUser.changePassword$($oldPassword$,$ newPassword, retypedNewPassword$)$;

session.resetSession$()$;