The function typeChecker receiver a parameter obj of type Any. Based upon the type of obj, it prints different messages for Int, String, Double, and Float types; if not any of the mentioned types, it prints "unknown type". What operator allows you to determine the type of an object?

This code does not print any output to the console. What is wrong? firstName?.let { println("Greeting $firstname!")}

Which line of code shows how to display a nullable string's length and shows 0 instead of null?

In the file main.kt, you are filtering a list of integers and want to use an already existing function, removeBadValues. What is the proper way to invoke the function from filter in the line below? Val list2 = (80..100).toList().filter(_____)

Which code snippet correctly shows a for loop using a range to display "1 2 3 4 5 6"?

You are upgrading a Java class to Kotlin. What should you use to replace the Java class's static fields?

You have written a function, sort(), that should accept only collections that implement the Comparable interface. How can you restrict the function? fun sort(list: List): List { return list.sorted()}

All classes in Kotlin inherit from which superclass?

In a Kotlin program, which lines can be marked with a label

Which line converts the binaryStr, whish contain only 0s and 1s, to an integer representing its decimal value? val binaryStr = "00001111"

What is the preferred way to create an immutable variable of type long?