Question 1

____ parameters are variables in a method declaration that accept the values from the actual parameters

Accepted Answer

formal

Question 2

When an object of one class is a data field within another class, they are related by _____.

Accepted Answer

composition

Question 3

A locally declared variable always ____ another variable with the same name elsewhere in the class.

Accepted Answer

masks

Question 4

It is illegal to declare the same variable name more than once within a block

Accepted Answer

True

Question 5

Application classes frequently instantiate objects that use the objects of other classes

Accepted Answer

True

Question 6

It is not necessary to create an instance of the Math class because the constants and methods of the class are ____

Accepted Answer

static

Question 7

A(n) ____ method is a method that creates and initializes class objects constructor.

Accepted Answer

constructor

Question 8

When calling this() from a constructor, it must be the ____ statement within the constructor

Accepted Answer

first

Question 9

A(n) ____ is a program module that contains a series of statements that carry out a task

Accepted Answer

method

Question 10

You are ____ required to write a constructor method for a class

Accepted Answer

never

Question 11

The ____ method executes first in an application, regardless of where you physically place it within its class

Accepted Answer

main()

Question 12

The reference to an object that is passed to any object\'s nonstatic class method is called the ____

Accepted Answer

this reference

Question 13

You can leave out the ____ statements in a switch structure

Accepted Answer

break

Question 14

____ is the encapsulation of method details within a class

Accepted Answer

implementation hiding

Question 15

You can use the ____, which is written as ||, if you want some action to occur when at least one of two conditions is true

Accepted Answer

conditional OR operator

Question 16

In the switch structure, break is followed by one of the possible values for the test expression and a colon

Accepted Answer

False

Question 17

A ____ checks a value, and based on the result performs one of two actions

Accepted Answer

decision structure

Question 18

The ____ statement notifies the program that you will be using the data and method names that are part of the imported class or package

Accepted Answer

import

Question 19

Within any class or method, the code between a pair of curly braces is called a(n) ____

Accepted Answer

block

Question 20

A(n) ____ statement is the decision structure you use when you need to take one or the other of two possible courses of action

Accepted Answer

dual-alternative if

Question 21

When you use nested if statements, you must pay careful attention to placement of any else clauses

Accepted Answer

True

Question 22

Public classes are accessible by all objects, which means that public classes can be ____, or used as a basis for any other class

Accepted Answer

extended

Question 23

When you write your own constructors, you cannot write versions that receive parameters

Accepted Answer

False

Question 24

A(n) ____ constructor is one that requires no arguments

Accepted Answer

default

Question 25

In order to allocate memory for an object, you use the ____ operator

Accepted Answer

new

Question 26

A ____ consists of written steps in diagram form, as a series of shapes connected by arrows

Accepted Answer

flowchart

Question 27

An application\'s main() method must have a void return type

Accepted Answer

True

Question 28

The ____ statement is useful when you need to test a single variable against a series of exact integer, character, or string values

Accepted Answer

switch

Question 29

Object-oriented programmers use the term ____ when a child class contains a field or method that has the same name as one in the parent class

Accepted Answer

override

Question 30

As long as you do not make any ambiguous method calls, a program that contains a potentially ambiguous situation will execute correctly

Accepted Answer

True

Question 31

An object is a ____ of a class

Accepted Answer

member

Question 32

A(n) ____ is a series of if statements that determine whether a value falls within a specified range

Accepted Answer

range check

Question 33

Just as you can block statements that depend on an if, you can also block statements that depend on a(n) ____

Accepted Answer

else

Question 34

Any class can contain an unlimited number of methods

Accepted Answer

True

Question 35

You can use the asterisk (*) as a ____, which indicates that it can be replaced by any set of characters

Accepted Answer

wildcard symbol

Question 36

When writing a statement with the two-line format, you must be sure to type a semicolon at the end of the first line in order to ensure accurate results

Accepted Answer

False

Question 37

When a variable ceases to exist at the end of a method, programmers say the variable ____

Accepted Answer

goes out of scope

Question 38

____ variables are variables that are shared by every instantiation of a class

Accepted Answer

Class

Question 39

Which of the following is NOT an initial value assigned to an object\'s data field by a default constructor? a field of object references set to null

Accepted Answer

Boolean fields set to true

Question 40

If you give the same name to a class\'s instance field and to a local method variable, the instance variable overrides the method\'s local variable

Accepted Answer

False

Question 41

You can use ____ arguments to initialize field values, but you can also use arguments for any other purpose

Accepted Answer

constructor

Question 42

Although it is possible to block statements that depend on an if, you cannot likewise block statements that depend on an else

Accepted Answer

false

Question 43

A(n) ____ variable is known only within the boundaries of the method instance

Accepted Answer

local

Question 44

If an integer is passed to a method with a double parameter, the double is promoted to an integer

Accepted Answer

false

Question 45

A disadvantage of Java is the large memory requirements to store a separate copy of each variable and method for each instantiation of a class

Accepted Answer

false

Question 46

An alternative to using a Boolean expression, such as someVariable == 10, is to store the Boolean expression\'s value in a Boolean variable

Accepted Answer

True

Question 47

When you properly ____ a method, you can call it providing different argument lists, and the appropriate version of the method executes

Accepted Answer

overload

Question 48

The method ____ is the first line of a method

Accepted Answer

declaration

Question 49

When working with logical operators, you can always use ____ to change precedence

Accepted Answer

parentheses

Question 50

When using equals and not equals for comparisons with objects, you compare the objects\' ____ instead of actual values

Accepted Answer

memory addresses

Question 51

You can use the keyword final with methods or classes

Accepted Answer

True

Question 52

When you create a block, you must place multiple statements within it

Accepted Answer

false

Question 53

When you execute an if...else statement, only one of the resulting actions takes place depending on the evaluation of the ____ following the if

Accepted Answer

Boolean expression

Question 54

When they have the same name, variables within ____ of a class override the class\'s fields

Accepted Answer

methods

Question 55

A variable comes into existence, or ____, when you declare it

Accepted Answer

comes into scope

Question 56

The keyword ____ indicates that a field value is unalterable

Accepted Answer

final

Question 57

When a value is returned from a method, you are required to use the value when the method is called

Accepted Answer

false

Question 58

The ____ operator is always evaluated before the OR operator

Accepted Answer

and

Question 59

The name of the ____ is always the same as the name of the class whose objects it creates

Accepted Answer

constructor

Question 60

When an expression containing a ____ is part of an if statement, the assignment is illegal

Accepted Answer

single equal sign

Question 61

Methods used with object instantiations are called ____ methods

Accepted Answer

instance

Question 62

The ____ package contains frequently used classes and is implicitly imported into Java programs

Accepted Answer

java.lang

Question 63

If a class\'s only constructor requires an argument, you must provide an argument for every ____ of the class that you create

Accepted Answer

object

Question 64

The AND operator is written as two ____

Accepted Answer

ampersands

AP Computer Science: Mid-Term – Flashcards

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