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Andrei Bacalu androuis

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@androuis
androuis / Kotlin Interview Questions.md
Created May 5, 2022 — forked from paulfranco/Kotlin Interview Questions.md
View Kotlin Interview Questions.md

Interview Questions

Kotlin

Q1: What is a primary constructor in Kotlin? ☆☆

Answer: The primary constructor is part of the class header. Unlike Java, you don't need to declare a constructor in the body of the class. Here's an example:




  


  




    


          
    

      

        
        

          

              @androuis
          

          

            
                androuis
                / CollectionUtils.java
            
            

              Created Apr 7, 2017
                — forked from mmarcon/CollectionUtils.java
            

              
                Maps are not Parcelable and this is an issue in Android when they need to be passed to activities and services via Intents. The corresponding Map-like object in Android is the Bundle. Bundle is a more generic container, it doesn't enforce types via generics and isn't supported natively by JSON deserializers such as Gson. This utility class expos…
              
          

        

      

        

    
      View CollectionUtils.java
  

    
    


        



  


  

        

          
          package es.cloudey.pagespeed.util;
        

        

          
          

        

        

          
          import java.util.HashMap;
        

        

          
          import java.util.Map;
        

        

          
          

        

        

          
          import android.os.Bundle;
        

        

          
          import android.os.Parcelable;
        

        

          
          

        

        

          
          public class CollectionUtils {
        

        

          
              public static Bundle toBundle(Map<String, ? extends Parcelable> input) {