LAB 1 — Android Studio Setup & Kotlin Basics
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Mobile Application Development | SUZA | Semester II 2025/2026

OBJECTIVES
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- Install Android Studio and configure the SDK
- Run an app on the emulator and a physical device
- Practice Kotlin fundamentals (variables, functions, control flow, classes)

PART A — Environment Setup
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1. Download and install Android Studio (latest stable) from
   https://developer.android.com/studio

2. Open the SDK Manager and install:
   - Android SDK Platform 34 (or latest)
   - Android Emulator
   - Android SDK Build-Tools
   - Google Play services

3. Create an AVD (Android Virtual Device):
   Tools > Device Manager > Create Device > Pixel 6 > API 34

4. Enable USB debugging on your phone (optional):
   Settings > About phone > tap "Build number" 7 times
   Settings > Developer options > USB debugging ON

PART B — Create "Hello SUZA" Project
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1. File > New > New Project > Empty Activity (Compose)
2. Name: HelloSuza, Package: tz.ac.suza.hellosuza
3. Minimum SDK: API 24 (Android 7.0)
4. Run (Shift+F10). Verify the default "Hello Android!" shows.
5. Change the greeting to display "Hello, SUZA!" and the current year.

PART C — Kotlin Playground Exercises
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Create a new Kotlin file "KotlinPractice.kt" (or use https://play.kotlinlang.org).

Write and run the following:

1. Variables & Types
   - Declare val name = "Your Name", var age = 21
   - Print: "My name is NAME and I am AGE years old."

2. Function — Area of a Rectangle
   fun area(width: Double, height: Double): Double { ... }
   Test: area(3.0, 4.0) -> 12.0

3. Control Flow — Grade Calculator
   Write a function grade(score: Int): String that returns:
   >=80 "A", >=70 "B", >=60 "C", >=50 "D", else "F"
   Use a "when" expression.

4. Loop — FizzBuzz
   For 1..30, print "Fizz" if divisible by 3, "Buzz" if by 5,
   "FizzBuzz" if by both, else the number.

5. List Operations
   val nums = listOf(1, 2, 3, 4, 5, 6)
   - Print the sum (use .sum())
   - Print only even numbers (use .filter { })
   - Print each number doubled (use .map { })

6. Classes
   Create class Course(val code: String, val title: String, val credits: Int).
   Override toString() to return "[code] title (credits)".
   Create a list of 3 Course objects and print them.

7. Null Safety
   val name: String? = readLine()
   - Print name?.length ?: 0
   - Explain in a comment what "?." and "?:" do.

DELIVERABLES
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- Screenshot of the running HelloSuza app on the emulator
- KotlinPractice.kt file with all 7 exercises completed
- Push to a new GitHub repository named "mad-lab01"