MAD Mobile Application development chapter 5 part 1
Content providers are the only way to share data between apps.
True or False?
True
What is the output of the following code?
num x = 1
while x > 0
print x
x++
endwhile
Prints an infinite set of numbers (1, 2, 3, 4, 5, 6, and so on).
An app like Where's My Phone?, which waits for text messages and responds with the GPS location, is best suited to an Android Service.
True or False?
True
A child class can inherit the methods from its parent class (or super class).
True or False?
True
Web applications have access to device capabilities, like the accelerometer or location services.
True or False?
True
In Java, Class instance variables must be declared at the beginning of the class definition.
True or False?
False
Android commands the highest market share of mobile devices by operating system.
True or False?
True
What is the output of running the following code?
string name = "Mark"
name[3] = 'c'
print name
An error
In the following onOptionsItemSelected() method, which id is most likely associated with starting a new session?
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.item1:
new();
return true;
case R.id.item2:
open();
return true;
case R.id.item3:
close();
return true;
case R.id.item4:
info();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
item1
Which language is NOT supported for development on Windows Phone 7?
C
Which of the following is NOT an Android life cycle event?
Application_Closing()
What is the result of the following code?
num x = 4
num y = 3
num i = 0
num j = 0
while i < x
j = 0
while j < y
print i, j
j = j + 1
endfor
i = i + 1
endfor
A) 0, 0
0, 1
0, 2
1, 0
1, 1
1, 2
2, 0
2, 1
2, 2
3, 0
3, 1
3, 2
4, 0
4, 1
4, 2
B) 0, 0
0, 1
1, 0
1, 1
2, 0
2, 1
3, 0
3, 1
4, 0
4, 1
C) 0, 0
0, 1
0, 2
1, 0
1, 1
1, 2
2, 0
2, 1
2, 2
3, 0
3, 1
3, 2
D) 0, 0
0, 1
1, 0
1, 1
2, 0
2, 1
3, 0
3, 1
0, 0
0, 1
0, 2
1, 0
1, 1
1, 2
2, 0
2, 1
2, 2
3, 0
3, 1
3, 2
In an array, what is the index of the first element?
0
Which of the following is NOT created and loaded by UIApplicationMain() in the iOS app life cycle?
Cocoa Touch
What does XML stand for?
Extensible Markup Language
Java programs are compiled into what format to be run on the virtual machine?
Bytecode
When providing support for binding, a service must provide that funcationality in the onBind() method.
True or False?
True
Which of the following is a preferred tool for Android development?
IBM Eclipse
Which term is used when an application on Windows Phone 7 is deactivated because it no longer has the focus?
Tombstoned
In the Android app life cycle, a main() method is executed each time your app is started.
True or False?
False
Which of the following is the LEAST common in game programming?
Retrieving data from a database
In Android: Which of the following could be found in the file NewClass.java?
public NewClass() {
message = "Hello World!";
}
What is the difference between the CLR and the Dalvik virtual machines?
Operating systems they are used on
Which function exists merely to call an iOS app's UIApplicationMain() function?
main()
In the pseudocode statement num x = 1, which part is a literal?
1
Given the UML class diagram seen in the accompanying figure, what is/are the class's member method(s)?
getArea and getPerimeter
Which of the following is the platform language for Windows Phone?
C#
Java programs aren't native to the OS, so the Android platform includes the Java Virtual Machine (JVM) for running Android apps written in Java on Android devices.
True or False?
False
How many apps can be run concurrently on Windows Phone 7?
1
Open-source tools, like PhoneGap, are free to buy and use.
True or False?
True
In Android: The Timer class method schedule uses which of the following units for its delay value?
Milliseconds
Which section of the App Inventor workspace represents an Android phone's screen?
Viewer
In Android: Which is the correct argument sent to the onOptionsItemSelected method to make menu items useful?
MenuItem item
Which is not a possible outcome of an app with a memory leak?
The app will close itself automatically when it reaches the memory limit.
What is the proper placement of parameters in a function or method definition?
Inside the parentheses
For security, Android applications are not able to access the existing messaging function of the phone.
True or False?
False