Deck 5: Investigate Android Lists, Arrays, and Web Browsers

Question 1

Which of the following terms provides a data model for the layout of the list?

A) abstraction
B) adapter
C) blueprint
D) skeleton

Answer 1

B

Question 2

Displays of lists are rarely used as a design pattern in mobile applications.

Answer 2

False

Question 3

Switch statements do not allow ranges such as 10-40 to match a case.

Answer 3

True

Question 4

An adapter provides a data model for the layout of the list.

Question 5

Which ListView control provides a two-level list?

A) DoubleListView
B) MultiListView
C) AdvancedListView
D) ExpandableListView

Question 6

What is the generic layout to a simple list?

A) simple_list_item_1
B) simple_list_item_2
C) simple_list_item_checked
D) simple_list_item_multiple_choice

Question 7

A URL is a URI with additional information necessary for gaining access to the resources required for posting the page.

Question 8

Which type of control do you use to contain a list of items that allows a user to select an item in the list for further action?

A) ArrayView
B) TableLayout
C) ListView
D) RadioGroup

Question 9

The first element in an array is referenced using index 0.

Question 10

What method projects your data to the onscreen list by connecting a ListView object to array data?

A) createViewAdapter method
B) projectArrayAdapter method
C) setListAdapter method
D) useListAdapter method

Question 11

In what is the reference for an array enclosed?

A) {}
B) []
C) ()
D) -

Question 12

An array is a container object that holds a fixed number of values of different data types.

Question 13

To declare an array without assigning actual values, allocate the size of the array in brackets to reserve the room needed in memory.

Question 14

If the primary purpose of a class is to display a ListView control, which of the following controls is recommended to extend the class from?

A) Activity
B) ListActivity
C) SelectionActivity
D) ViewingActivity

Question 15

Which variable allows you to store multiple values in one variable at the same time?

A) array variable
B) index variable
C) list variable
D) temporary variable

Question 16

If a Java View list exceeds the length of the screen, what is done to the list?

A) the list is made scrollable
B) the list is paginated
C) the list is shrunk to fit
D) the list is truncated

Question 17

A switch statem ent can also be implemented as a chain of if/else statements.

Question 18

Each time you add a class to an application, the class should begin with a lowercase letter and a coordinating XML layout file with the same name with an uppercase letter is automatically created.

Question 19

It is not necessary to use the break keyword to end a case statement; it is automatically terminated by the next case keyword.

Question 20

Which of the following controls allows you to create a two-level list?

A) ExpandableListView control
B) ListView control
C) MajorListView
D) TwoListView control

Question 21

Which intent action opens a Web browser on the Android?

A) ACTION_VIEW
B) BROWSE_VIEW
C) HTTP_VIEW
D) WEB_VIEW

Question 22

What statement should you put at the end of a switch statement if you want a block of code to be executed in the event none of the case statement values matches?

A) default:
B) option:
C) try:
D) execute:

Question 23

What is used so apps can talk to each other in a very simple way?

A) activities
B) classes
C) intents
D) values

Question 24

When a list item is selected, what part of it is passed to the executing code?

A) bytecode
B) name
C) position
D) signature

Question 25

Where is the strings.xml file located?

A) res/drawable-hdpi folder
B) res/drawable-mdpi folder
C) res/layout folder
D) res/values folder

Question 26

Which method is called when an item in a list is selected?

A) clicked
B) itemClicked
C) itemWasClicked
D) onListItemClick

Question 27

What should end the block of code in each case statement to prevent the subsequent case statement from being executed as well?

A) default;
B) break;
C) exit;
D) end;

Question 28

Each item in the array is identified using a(n) ____________________.

Question 29

The code to access the fifth element of an array called names is ____________________.

Question 30

Which of the following is the correct syntax for the beginning of a switch stat ement that evaluates a variable named choice ?

A) case(choic e):
B) switch [choice ] {
C) case[choice]:
D) switch(choice) {

Question 31

What is the generic layout that displays checkboxes?

A) boxed_list_item
B) checked_list_item
C) list_item_checked
D) simple_list_item_checked

Question 32

The code to declare and initialize an array (in one statement) called fruit that holds the strings "Apple" , "Mango" , and "Pear" , in that order, is _____________________________________________.

Question 33

Which statement allows you to evaluate a value and execute a block of statements based on an integer or single character input?

A) choose statement
B) case statement
C) select statement
D) switch statement

Question 34

What does the acronym URL stand for?

A) Uniform Resource Locator
B) Universal Redirection Locale
C) Usual Random Lesson
D) Utility Rendering Logo

Question 35

Each individual item in an array is called a(n) ____________________.

Question 36

Suppose you wanted to declare a variable called mat that is an array of arrays of ints. The code to declare this variable would be ____________________.

Question 37

Which XML code statement places an icon named ic_city . P n g to the right of the text in a ListView display?

A) android:drawableRight="@drawable/ic_city"
B) android:iconRight="@icon/ic_city"
C) icons:drawableRight="@drawable/ic_city"
D) icons:iconRight="@icon/ic_city"

Question 38

Which browser is not supported in Android?

A) Firefox
B) Internet Explorer
C) Opera
D) Dolphin

Question 39

Which statement in a custom XML layout for a ListView sets the size of the test to 20sp?

A) android:textSize="20sp"
B) ListView:textSize="20sp"
C) android:text="20sp"
D) ListView:text="20sp"

Question 40

When opening a Web site with an intent, what is the last argument?

A) image
B) string
C) URI
D) URL

Question 41

Typically, each case option in a switch statement ends with the keyword ____________________.

Question 42

Testing an Android app is called ____________________.

Question 43

The standard generic layout for ListView is ____________________.

Question 44

The type of a ListAdapter that operates on an array of String objects is ____________________.

Question 45

A Web site address may also be called a(n) ____________________.

Question 46

The code to declare and initialize an empty array of 10 ints, called "digits" , is ______________________________.

Question 47

A browser is launched with Android code using a(n) ____________________.

Question 48

URI is short for ____________________.

Question 49

In a switch statement, each option must begin with the ____________________ keyword.

Question 50

The name of the key found in strings.xml that determines the string displayed as the title of the app is ______________.