IST236Test1

Question 1

In which year did Google purchase the company Android, Inc.?

Answer 1

2005

Question 2

What is the one-time cost for a developer’s account at the Android Market?

Answer 2

$25

Question 3

When you post an Android app at the Android Market, what percentage of the app price does the developer keep?

Answer 3

70%

Question 4

How much is Amazon’s annual fee for a developer’s account?

Answer 4

$99

Question 5

Which three manufacturers’ operating systems can be used to program an Android app?

Answer 5

Windows, Mac, Linux

Question 6

Which two languages are used in creating an Android app in Eclipse?

Answer 6

Java and XML

Question 7

What would be the recommended package name if your domain was karencodeworld.net and your project name was AndroidMap?

Answer 7

net.karencodeworld.AndroidMap

Question 8

Name three widgets mentioned in this chapter.

Answer 8

TextView, Button, CheckBox controls

Question 9

What is the name of the widget that was used in the Hello Android World app?

Answer 9

TextView control

Question 10

Which two key combinations can you press to execute an Android app in Eclipse?

Answer 10

Ctrl+F11 in Windows and Command+Shift+F11 on Mac

Question 11

Which Android version is Ice Cream Sandwich?

Answer 11

4.0

Question 12

If you were creating an app in many different languages, would you have to write the entire program from scratch for each language?

Answer 12

no

Question 13

What part of the program in question 1 would stay the same?
What part of the program would be different?

Answer 13

Java code, You would have unique XML layout files, one for each language.

Question 14

In which subfolder in the Package Explorer are the XML files stored?

Answer 14

Layout

Question 15

Which three controls were used in the chapter project? (ch2)

Answer 15

TextView, ImageView, Button

Question 16

What is the difference between Linear layout and Relative layout?

Answer 16

Linear layout arranges components in a vertical column or horizontal row. Relative layout arranges them in relation to each other.

Question 17

Is the default layout for an Android screen Linear or Relative?

Answer 17

Linear

Question 18

Which measurement is most preferred for text size?

Why?

Answer 18

sp, If a user has set up an Android phone to display a large font size for more clarity, the font in the app will be scaled to meet the user’s size preference.

Question 19

What does px stand for?

Answer 19

Pixels

Question 20

What does sp stand for?

Answer 20

scaled-independent pixels

Question 21

What does dpi stand for?

Answer 21

dots per inch

Question 22

What is an Android theme?

Answer 22

It is a style applied to an Activity or entire application.

Question 23

Which theme was used in the chapter project?

Answer 23

The theme used was Theme.Black.NoTitleBar.

Question 24

In an app, suppose you want to use the theme named Theme.Translucent. What code is needed in the AndroidManifest.xml file to support this theme?

Answer 24

The code needed is anroid:theme=”@android:style/Theme.Translucent”.

Question 25

What is a soft keyboard? Be sure to include its location in your answer.

Answer 25

It is the onscreen keyboard on an Android device, which is positioned at the bottom of the screen over the application window.

Question 26

Which five controls were used in the chapter project?

Answer 26

They were Text Fields, TextView, ImageView, Button, and Spinner controls.

Question 27

Which Text Field control is best for entering an amount that contains a paycheck amount?

Answer 27

It would be Number (Decimal).

Question 28

Which property of the Spinner control adds text at the top of the control such as instructions?

Answer 28

Prompt

Question 29

What is the name of the file that holds commonly used phrases (arrays) of text in an application?

Answer 29

It is strings.xml.

Question 30

What is a single string of information called in a string array?

Answer 30

Item

Question 31

Which property do you assign to the string array that you create for a Spinner?

Answer 31

Entries

Question 32

What is the icon found on the Android home screen that opens an app?

Answer 32

launcher icon

Question 33

What is the preferred prefix for a filename and file extension of the icon described in question 1?

Answer 33

It is ic_launcher for the filename and png for the extension.

Question 34

What is the pixel size for the icon described in question 1 for a high-density pixel image?

Answer 34

72x72

Question 35

To display a custom icon, you must perform two steps. First, add the icon image file to the drawable-hdpi folder. What is the second step?

Answer 35

The Android Manifest file must be updated to include the new filename of the new image file.

Question 36

Which TextView property is changed to identify the color of the control?

Answer 36

Text color property

Question 37

Which primary color is represented by the hexadecimal code of #00FF00?

Answer 37

green

Question 38

What is the name of the tool used to center a TextView control horizontally?

Answer 38

Change Gravity tool

Question 39

Using the Change Margins tool, in which text box would you type 22dp to move a control 22 density pixels down from the upper edge of the emulator?

Answer 39

Top Text box

Question 40

When a RadioGroup control is placed on the emulator, the first RadioButton control is selected by default. Which property is set as true by default?

Answer 40

The Checked property is selected.

Question 41

Write an If statement that tests if the value in the variable age is between 18 and 21 years of age, inclusive, with empty braces.

Answer 41

if (age >= 18 && age <=21) { }

Question 42

6 items on the Req Doc

Answer 42

Application Name, Purpose, Program Procedures, Algorithm, Notes, Comments

Question 43

What goes at the top of the Req Doc? (4 items)

Answer 43

David Smith, IST 236, Requirements Document, Assignment and Problem Numbers

Question 44

Application Name

Answer 44

Self Explanatory

Question 45

Purpose

Answer 45

Tell me about the program and sell me on why I need it

Question 46

Program Procedures

Answer 46

Basic Description of what the program does

Question 47

Algorithm

Answer 47

Step by step instructions of what it does

Question 48

Notes

Answer 48

that would be valid to the reader

Question 49

Comments

Answer 49

Information pertinent to the application