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The Ultimate Guide to Kotlin Programming

Taking the App for a Drive

Explore how to implement and run a Kotlin airport status app using a main function with coroutines. Understand how to handle real-time data output, test various airport codes, and ensure graceful failure with network issues. This lesson prepares you to run and observe a function-driven Kotlin program locally.

We'll cover the following...

Writing main() function

Let’s write a main() function to call the getAirportStatus() function with a few different airport codes and print the status of the airports with those codes to the console. In your local setup create a file named AirportApp.kt in the directory src/main/kotlin/com/agiledeveloper/ui and key in the following code:

Kotlin
package com.agiledeveloper.ui



import kotlinx.coroutines.*

import com.agiledeveloper.airportstatus.*



fun main() = runBlocking {

  getAirportStatus(listOf("SFO", "IAD", "IAH", "ORD", "LAX"))

    .forEach { println(it) }

}

Since ...