Deck 4: Explore Icons Decision Making Controls

Question 1

RadioButton controls are circular in shape, while CheckBox controls are square.

Answer 1

True

Question 2

Each icon used in an app should come in ____ size(s).

A) one
B) two
C) four
D) six

Answer 2

C

Question 3

A ____ is a triplet of three colors which encodes different colors.

A) controlled color code
B) hexadecimal color code
C) standard color encoding
D) triple-coded color

Answer 3

B

Question 4

Java automatically indents control structures to make them easy to identify.

Question 5

The icon used to start your app is called the ____.

A) boot icon
B) launcher icon
C) master icon
D) starter icon

Question 6

RadioButton controls are usually used together in a ____, causing only one RadioButton to be selected at a time.

A) GroupControl
B) MultiButton
C) RadioGroup
D) Selector

Question 7

A toast notification is an easy way to inform the user of a failed data validation.

Question 8

Never offer a default selection, as it complicates user input.

Question 9

The following condition is valid: (6 || ticketPrice) > (450.45 == "vacation") .

Question 10

Decision-making statements in Java allow you to test ____ and perform different operations depending on the results of that test.

A) conditions
B) data integrity
C) security
D) icons

Question 11

A(n) ____ control always operates independently, therefore selecting it will never deselect any other controls.

A) CheckBox
B) EachButton
C) SingleSelect
D) TextView

Question 12

Launcher icons form the first impression of your app on prospective users in the Android Market.

Question 13

The ____ change(s) the spacing around each object in your layout.

A) borders
B) margins
C) cellpadding
D) cellspacing

Question 14

____ graphics are best to use for icon design because the images can be scaled without loss of detail.

A) Composite
B) Raster
C) Scanned
D) Vector-based

Question 15

Logical operators are used to combine smaller logical and relational operators.

Question 16

A toast notification communicates messages to the user.

Question 17

The recommended prefix for a launcher icon is ____.

A) ic_launcher
B) ic_start
C) launch_icon
D) start_icon

Question 18

Launcher icons should be intricate and conservative to have a memorable impact.

Question 19

The ____ property can center a control horizontally as well as position it at other places on the screen.

A) elastic
B) gravity
C) rubber band
D) stretch

Question 20

The statement 6<=6 is true.

Question 21

When more than one condition is tested in an If statement, it is called a(n) ____.

A) compound condition
B) expanded condition
C) linked condition
D) multicondition

Question 22

The operator for "equal to" is ____.

A) =
B) ==
C) !=
D) <=

Question 23

The resulting value of the expression "sears".compareTo("chicago") is ____.

A) equal to 0
B) greater than 0
C) less than 0
D) unknown

Question 24

To set an app's launcher icon to an image called myLaunchIcon. P n g , the code to insert into the manifest is ____________________.

Question 25

The method call to make to display a toast notification is Toast. ____.

A) alert
B) makeText
C) showText
D) toastNotify

Question 26

Java provides ____ to compare the relationship between the variables being tested in conditional statements. 

A) byte analysis
B) logical operators
C) relational operators
D) static methods

Question 27

A ____ is a fundamental control structure used in computer programming.

A) choice point
B) code block
C) decision structure
D) logic structure

Question 28

The statements that execute when an If statement is true are enclosed in ____ .

A) [ and ]
B) { and }
C) | and |
D) begin and end

Question 29

When you have one set of instructions to execute when a condition is true and another set of instructions if the same condition is false, you use a(n) ____ statement.

A) If
B) If Else
C) While
D) Switch

Question 30

When you publish an app in the Android Market, you must provide an icon of size ____________________ (state as number x number ) as the display icon in the Market.

Question 31

A toast notification ____.

A) always fades after one second
B) automatically fades after a set amount of time
C) never goes away
D) requires a button push to fade

Question 32

To compare the lexicographical order of two strings, use the ____.

A) < operator
B) > operator
C) compareTo method
D) equals method

Question 33

For a extra high-density screen, the pixel size of an icon should be ____________________ (state as number x number ).

Question 34

The method to test a checked property is the ____ method.

A) getChecked()
B) isChecked()
C) checked()
D) setChecked()

Question 35

Strings in Java are compared for equality by using the ____.

A) = operator
B) == operator
C) compareTo method
D) equals method

Question 36

You test for a(n) ____________________ being true or false and change the flow of what happens in a program based on the user's input.

Question 37

A toast notification uses ____ to display a message.

A) half of the screen
B) only the amount of space needed
C) one line
D) the whole screen

Question 38

The most common mistake with an If statement is using the ____ instead of the equals operator.

A) assignment operator
B) compareTo method
C) greater than operator
D) less than operator

Question 39

____________________ controls are used to select and deselect an option.

Question 40

When an If statement is placed inside another If statement, the inner If statement is considered to be ____.

A) folded
B) internal
C) nested
D) stacked

Question 41

The color code for black is ____________________.

Question 42

The code to display the short toast message "Hi mom" is _________________________________________________________________.

Question 43

The process of verifying that a value is not a typo or some other type of mistake is called ____________________.

Question 44

The isChecked method makes use of the ____________________ property of the RadioButton or CheckBox control.

Question 45

Instead of eyeballing the controls on the user interface for alignment, you can use the ____________________ tool to create equal spacing around controls.

Question 46

A toast message is best used for ____________________ messages.

Question 47

When two Strings are compared, they are ordered ____________________.

Question 48

The truth value of the expression !(false && (true || !false) && (!false || !true)) is ____________________.

Question 49

Let the String variable a be set to the value "Boston" . The value of the expression a.equals("boston") is ____________________.