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Introduction to Android Studio and Simple Kotlin Programming

If you just want to demonstrate simple Kotlin programs to show loops and if-then statements, you can use Android Studio as an IDE to write and run Kotlin scripts without creating a full Android app.

Steps to Write and Run Simple Kotlin Programs in Android Studio

Step 1: Create a Kotlin File

Open Android Studio.

Create a New Project (if you haven't already):

Start a new project and select "No Activity" to keep it simple.

Navigate to Project View:

On the left-hand side, switch to "Project" view to see the project directory structure.

Add a Kotlin File:

Right-click on the src folder (inside app/src/main/kotlin if the structure is like an Android project) or simply right-click on app.

Select New > Kotlin File/Class.

Name the file (e.g., SimpleKotlinProgram) and select "File" from the options.

Step 2: Write Your Kotlin Program

Open the Created Kotlin File (e.g., SimpleKotlinProgram.kt).

Write a Simple Program to Demonstrate Loops and If-Then Statements

fun main() { // Demonstrating a for loop var sum = 0 for (i in 1..10) { sum += i } println("The sum of numbers from 1 to 10 is: $sum")

// Demonstrating an if-then statement val number = 7 if (number % 2 == 0) { println("$number is even") } else { println("$number is odd") } }

Step 3: Run the Kotlin Program

Run the Program:

Right-click on the Kotlin file (e.g., SimpleKotlinProgram.kt).

Select Run 'SimpleKotlinProgramKt' from the context menu.

View the Output:

The output will be displayed in the Run window at the bottom of Android Studio.

Explanation of the Program

For Loop:

The for loop iterates from 1 to 10, adding each number to the variable sum.

After the loop, it prints the total sum.

If-Then Statement:

The if statement checks if the variable number is even or odd.

It uses the modulus operator % to check the remainder when number is divided by 2.

Depending on the result, it prints whether the number is even or odd.

Benefits

Focus on Basics: This method allows you to focus on teaching the basics of Kotlin without the complexity of Android app development.

Quick Feedback: Students get immediate feedback by running the program and seeing the output in the console.

Flexibility: You can easily modify the code to demonstrate other concepts such as different types of loops (while, do-while), nested loops, and more complex if-then-else conditions.

Additional Example

Nested Loop Example:

fun main() {

// Nested loops to print a multiplication table

for (i in 1..5) {

for (j in 1..5) {

print("${i * j}\t")

}

println()

}

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