We implement from a subclass and extend an interface

We implement a base class and extend from an interface

We extend from a base class and implement a subclass

We extend from a subclass and implement a base class

scanner.nextLong()

scanner.nextInt()

scanner.nextLine()

scanner.hasNextLine()

scanner.next()

Each instance of the class has its own copy of the variable

There is only 1 copy of it that all instances of the class can access

It cannot be changed

It can only be changed by the instances of the class in which it is declared

Another word for style

A description of objects

Another term for a constructor

A collection of students

A TextArea is not a class and TextField is a object for handling multiple lines of text

A TextArea is used for displaying graphics and TextField is used for inputing images

A TextArea can be used for output whileTextField can be used for handling multiple lines of text

A TextArea can handle multiple lines of text while a TextField is a text component that allows for the editing of a single line of text.

inputStreamReader

fileInputText

FileReader

FileInputStream

inPut

const

static

goto

We implement a base class and extend from an interface

We implement from a subclass and extend an interface

We extend from a base class and implement a subclass

We extend from a subclass and implement a base class

It cannot be changed

Each instance of the class has its own copy of the variable

It can only be changed by the instances of the class in which it is declared

There is only 1 copy of it that all instances of the class can access

Creates a new array of references to music objects, called Song

Creates a new array of references to Song objects, called music

Declares a variable called music whose type is null

Declares a variable called music whose type is an array of Song objects, but does not create an actual array

Instantiated

Invoked

Overloaded

Overridden

Only the ones where the this keyword is used in front of them

The three integers declared in lines 3-5

The three integers passed as parameters in the constructor, defined in line 7

There are none

Assigning the value of the field length to the parameter length

Assigning the value of the field length to itself, i.e. doing nothing useful

Assigning the value of the parameter length to itself, i.e. doing nothing useful

Assigning the value of the parameter length to itself, i.e. doing nothing useful

It is needed, but the left and right hand sides of the assignment should be swapped, so that the equation is: width = this.width;

It is needed, because we need to differentiate between the width parameter and the width field (use this to refer to the parameter one), and the assignment is correct as written.

It is needed, because we need to differentiate between the width parameter and the width field (use this to refer to the field one), and the assignment is correct as written

It is not needed, and should be rewritten as: width = width;

The error is the same as specified in option A, but it should be corrected to the equation: h = height;

There is no error.

The error is simply that the right and left hand sides of the assignment are switched. It should be corrected to: this.h = height;

The error is there’s no field h in the Desk class, so can’t write this.h. It should be corrected to: this.height = h;