Mobile Application Development Final Exam Quiz Questions and Answers

Mobile Application Development Quiz

Test your knowledge on topics related to mobile application development, including app development, mobile platforms, and more. This quiz covers content from the Faculty of Computing module IT2010, focusing on student-centered learning.

Created by

@SeamlessPlatypus

Questions and Answers

What is the purpose of using 'val' in Kotlin?

To declare a variable whose value can never change

How does Kotlin handle type inference?

The compiler infers the type based on the initial value assigned to the variable

What is the purpose of the '?' suffix in Kotlin variable declarations?

It indicates that the variable is a nullable type

Which statement about null safety in Kotlin is correct?

Kotlin variables cannot hold null values unless explicitly declared as nullable Signup and view all the answers

What is the purpose of the 'var' keyword in Kotlin?

To declare a variable whose value can change Signup and view all the answers

Which of the following is an invalid Kotlin variable declaration?

var z Signup and view all the answers

What is the purpose of the null safety feature in Kotlin?

To prevent null pointer exceptions at runtime Signup and view all the answers

Which of the following statements about type inference in Kotlin is incorrect?

Type inference is mandatory in Kotlin Signup and view all the answers

What is the purpose of the '?' suffix in Kotlin when used with function parameters?

It indicates that the parameter is a nullable type Signup and view all the answers

Which of the following statements about null safety in Kotlin is incorrect?

Null values can be assigned to non-nullable types Signup and view all the answers

Study Notes

Course Overview

Module Code: IT2010
Credit Value: 4
Method of Delivery: Lectures (1 hour/week), Tutorials (2 hours/week), and Labs (2 hours/week)
Assessment Criteria: Midterm (20%), LAB Exam 1 (10%), LAB Exam 2 (10%), LAB Exam 3 (10%), and Final Exam (50%)

Learning Outcomes

Understand the fundamentals of mobile application development
Explain different mobile platforms and related technologies
Code a simple program in Kotlin

Why Mobile Apps?

Mobile phones have various features and opportunities
The number of smartphone users is growing (3.5 billion in 2020)
Business organizations prefer mobile applications over mobile-friendly websites
Good mobile applications add value to businesses

Mobile Application Development

Refers to the creation of apps for devices such as tablets, smartphones, and watches
Often incorporates features of mobile devices not available on desktop devices

Key Features of Mobile Applications

Great UI (User Interface)
Fast loading time and high performance
Extremely helpful user support
Adapts to a user’s needs
Compatible with a mobile platform

Reasons for Mobile App Failures

Lack of market
Inadequate security
Slow performance
Poor UX/UI
Unpersuasive marketplace listing
Difficulty adjusting web version to smartphone screen
Limited functions

Mobile App Development Platforms

Android – Android Studio
iOS – Xcode
HarmonyOS – DevEco Studio
Cross Platform – Flutter, React Native, Xamarin

Android Studio

Official integrated development environment (IDE) for Android
Built on JetBrains' IntelliJ IDEA software
Designed specifically for Android development
Replaced Eclipse Android Development Tools (E-ADT) as the primary IDE for native Android application development

Kotlin

Modern, concise, and safe programming language
Easy to learn and use
Preferred language for Android app development
Features: Expressive, Concise, Safe, Interoperable, and Structured Concurrency

Kotlin Features

Variable Declaration: Use val for immutable variables and var for mutable variables
Type Inference: Compiler can infer the type based on the assigned value
Null Safety: Variables can't hold null values by default, and nullable types must be specified
Conditionals, Functions, Classes, and Asynchronous code