CR Launch Android

MainActivity.kt

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import androidx.lifecycle.lifecycleScope
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import kotlin.system.measureTimeMillis

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        lifecycleScope.launch {
            val timeSpent = measureTimeMillis {
                var result1 = ""
                var result2 = ""
                val answer1 = launch { result1 = longProcess() }
                val answer2 = launch { result2 = longProcess2() }
                answer1.join()
                answer2.join()
                Log.d("test", result1)
                Log.d("test", result2)
            }
            Log.d("test", "m: $timeSpent")
        }
    }

}

suspend fun longProcess(): String {
    delay(2000L)
    return "Answer 01"
}

suspend fun longProcess2(): String {
    delay(4000L)
    return "Answer 02"
}