Deck 7: Control Statements Continued

Question 1

The OR operator has the same precedence as + or -.

Answer 1

False

Question 2

Most errors involving selection statements and loops are syntax errors.

Answer 2

False

Question 3

An animated object moving in the direction of 180 degrees is moving east. ____________________

Answer 3

False

Question 4

The expression !(p | | q) is equal to ____.

A) !p && !q
B) !(p && q)
C) !p | | !q
D) | | (!p !q)

Question 5

In the sentence "If the sun is shining AND it is 8
A) If both operands are true, the condition as a whole is true.

A)m. then let's go for a walk; else let's stay home," which of the following is true?
B) If both operands are false, the condition is false.
C) If either operand is false, the condition is false.
D) All of the above are true.

Question 6

When evaluating an if statement, if there are two operands, there are four possibilities.

Question 7

In Java, the nested statement provides an alternative to the extended if statement. ____________________

Question 8

The presence of looping statements increases the challenge of designing good test data.

Question 9

Complete code coverage tests all of the logical paths through a program.

Question 10

A string is an immutable object; once it is created, its length cannot change and its characters cannot be modified. ____________________

Question 11

Use a truth table if you are unsure about the meaning of an if statement.

Question 12

In animations, faster objects can travel a greater distance between frames than slower ones.

Question 13

In Java, the operator OR is represented by ____.

A) &&
B) | |
C) !
D) < >

Question 14

The process of short-circuit evaluation ____.

A) identifies potential run-time errors
B) identifies potential logic errors
C) stops the evaluation of a Boolean expression once it knows the value
D) creates robust programs

Question 15

An assert statement allows the programmer to evaluate a Boolean expression and halt the program with an error message if the expression's value is false. ____________________

Question 16

Using equivalences enables you to rewrite a condition in a more easily understood form.

Question 17

In Java, the operator NOT is represented by ____.

A) &&
B) | |
C) !
D) < >

Question 18

A Boolean variable can be either true or false. ____________________

Question 19

Circles have an initial speed of 0 and an initial direction of 0 degrees.

Question 20

Indentation is a convention that indicates relationships and precedence to the compiler.

Question 21

FIGURE 7-2
Figure 7-2 shows the output of a program that includes a(n) ____.

A) arithmetic overflow
B) data validation
C) boundary condition
D) assert statement

Question 22

FIGURE 7- 1
Figure 7-1 above is a(n) ____.

A) flowchart
B) truth table
C) evaluation grid
D) rule table

Question 23

A combinatorial explosion is ____.

A) a type of run-time error
B) what happens when the JVM throws an exception
C) the multiplicative growth in test cases
D) a sign that your program is not robust

Question 24

When a timer is instantiated, it is given an interval in milliseconds and a(n) ____ object.

A) listener
B) direction
C) speed
D) distance

Question 25

A(n) ____ if statement is another word for an extended if statement.

A) multiway
B) nested
C) two-way
D) looped

Question 26

A loop ____ is an assertion whose truth changes between the first and final execution of the loop.

A) validation
B) mutator
C) invariant
D) variant

Question 27

A(n) ____ object can be used to read words from a string.

A) substring
B) char
C) reader
D) Scanner

Question 28

____________________ assurance is the process of making sure that a software product is developed to the highest standards possible.

Question 29

Testing under ____________________ conditions uses data at the limits of validity.

Question 30

A(n) ____ loop is placed within another loop.

A) double
B) embedded
C) nested
D) You cannot put a loop inside another loop.

Question 31

At minimum, test data should try to achieve ____.

A) boundary conditions
B) complete code coverage
C) extreme conditions
D) short-circuit evaluation

Question 32

To implement the ____________________ ( ) method, calculate the distances in the x and y directions based on the object's current position, its speed, and its direction.

Question 33

A ____________________ program tolerates errors in user inputs and recovers gracefully.

Question 34

All the sets of test data that exercise a program in the same manner belong to the same ____ class.

A) assurance
B) boundary
C) logical
D) equivalence

Question 35

Use the ____ operator to wrap the direction of a moving object if it is greater than 360 degrees.

A) +
B) >
C) | |
D) %

Question 36

Among other things, AI systems have been used to control ____.

A) robots
B) data validation
C) programming languages
D) compilation

Question 37

A loop ____ is an assertion that expresses a relationship between variables that remains constant throughout all iterations of the loop.

A) validation
B) operator
C) invariant
D) variant

Question 38

Jinling is testing a loop that has errors. She should check the value of the control variable loop at all of the following points EXCEPT ____.

A) before the loop is entered
B) in the middle of each iteration
C) after each update
D) after the loop is exited

Question 39

The method "equals (aString)" returns a(n) ____ value.

A) int
B) boolean
C) char
D) object

Question 40

A(n) ____ assertion states what should be true before a loop is entered

A) input
B) output
C) invariant
D) variant

Question 41

What is a truth table used for? What other tool might you use for the same purpose? How do you know how many possibilities to include in the table?

Question 42

Java uses a special type of object called a(n) ____________________ to schedule events at regular intervals.

Question 43

Identify the letter of the choice that best matches the phrase or definition.
a.Javish
b.Boundary conditions
c.Data validation rules
d.Output assertions
e.Arithmetic overflow
Test data that assesses on or near the limits of the equivalence classes.

Question 44

Identify the letter of the choice that best matches the phrase or definition.
a.Javish
b.Boundary conditions
c.Data validation rules
d.Output assertions
e.Arithmetic overflow
A statement in a combination of code, words, and syntax.

Question 45

Identify the letter of the choice that best matches the phrase or definition.
a.Javish
b.Boundary conditions
c.Data validation rules
d.Output assertions
e.Arithmetic overflow
When numeric data falls outside of the valid range.

Question 46

Identify the letter of the choice that best matches the phrase or definition.
a.Javish
b.Boundary conditions
c.Data validation rules
d.Output assertions
e.Arithmetic overflow
State what should be true when a loop is exited.

Question 47

Identify the letter of the choice that best matches the phrase or definition.
a.Javish
b.Boundary conditions
c.Data validation rules
d.Output assertions
e.Arithmetic overflow
Values used to test a program.