Question 1

Which intent action opens a Web browser on the Android?

Accepted Answer

The intent action ACTION_VIEW should be used to open a Web browser or any other activity that can display the specified data type. It is the standard way of launching a Web browser in Android. The BROWSE_VIEW, HTTP_VIEW, and WEB_VIEW options do not exist in Android intent actions.

Question 2

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?

Accepted Answer

The correct statement to use at the end of a switch statement if none of the case statement values match is the "default" statement. This statement is followed by a block of code that will be executed if none of the other case statements match.

Question 3

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

Accepted Answer

Intents are used to facilitate communication between different components of an Android app or between different apps altogether. They simplify the process of passing data or event notifications from one app component to another, in a loosely coupled manner.

Question 4

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

Accepted Answer

When a list item is selected, the position/index of the item in the list is usually what is passed to the executing code. This allows the code to identify the specific item that was selected and perform actions based on its position in the list.

Question 5

Where is the strings.xml file located?

Accepted Answer

The strings.xml file is located in the res/values folder. This folder is used for storing values such as strings, colors, dimensions, and other resources that are not related to specific layouts or images. The other folders listed (drawable-hdpi, drawable-mdpi, and layout) are used for storing images and layout files.

Question 6

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

Accepted Answer

The method called when an item in a list is selected is onListItemClick. This is the correct naming convention for the method used in Android development.

Question 7

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

Accepted Answer

The correct choice to end the block of code in each case statement to prevent the subsequent case statement from being executed as well is "break". This statement terminates the current loop or switch statement and resumes execution at the next statement following the loop or switch.

Question 8

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

Accepted Answer

The answer of Each item in the array is identified...

Question 9

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

Accepted Answer

The answer of The code to access the fifth element...

Question 10

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

Accepted Answer

The correct syntax for a switch statement requires parentheses around the variable being evaluated, as shown in option D. Options A and C are incorrect because they use incorrect syntax for the case statement. Option B is incorrect because it uses square brackets instead of parentheses for the switch statement.

Question 11

What is the generic layout that displays checkboxes?

Accepted Answer

The generic layout that displays checkboxes in Android is simple_list_item_checked. This layout provides a text view and a checkbox for each item in the list, and the checkbox can be toggled on or off by the user. It is the most commonly used layout for displaying lists with selectable items. Therefore, the best choice is D.

Question 12

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 _____________________________________________.

Accepted Answer

The answer of The code to declare and initialize an...

Question 13

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

Accepted Answer

The switch statement in programming allows you to evaluate a single value (usually an integer or a single character) and execute a block of statements based on the input value. It is commonly used in programming languages like C++, Java, and Python.

Question 14

What does the acronym URL stand for?

Accepted Answer

URL stands for Uniform Resource Locator, which is the address of a specific webpage or file on the Internet. It is used to locate and access resources on the web.

Question 15

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

Accepted Answer

The answer of Each individual item in an array is...

Question 16

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 ____________________.

Accepted Answer

The answer of Suppose you wanted to declare a variable...

Question 17

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

Accepted Answer

The correct attribute for indicating the placement of an icon to the right of text in a ListView is android:drawableRight. The correct syntax for referencing the image file named ic_city.png is @drawable/ic_city. Therefore, the correct code statement is android:drawableRight="@drawable/ic_city".

Question 18

Which browser is not supported in Android?

Accepted Answer

Internet Explorer is a browser that is only supported on Windows operating systems and is not compatible with Android. The other options (Firefox, Opera, and Dolphin) are all browsers that are compatible with Android.

Question 19

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

Accepted Answer

Only option A sets the textSize property for the ListView's items to 20sp using the android:textSize attribute.

Question 20

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

Accepted Answer

When opening a website with an intent, the last argument is typically a URI (Uniform Resource Identifier). While URLs (Uniform Resource Locators) could also be used, URIs are a more general term and encompass not only URLs but also other types of identifiers such as URNs (Uniform Resource Names). Therefore, using a URI provides more flexibility in identifying the resource being opened.

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