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Android Build a Simple Android App with Kotlin Improving Our Code Creating a New Class

Vladimir Vasconcelos
PLUS
Vladimir Vasconcelos
Courses Plus Student 6,433 Points
Posted by Vladimir Vasconcelos
Vladimir Vasconcelos
Courses Plus Student 6,433 Points

What am I doing wrong?

I think my code is ok, but I'm still getting an error.

PictureBook.kt 
public fun PictureBook(){

  var title : String = "Android Adventures"
}
Raveesh Agarwal
Raveesh Agarwal
2,994 Points
Raveesh Agarwal
Raveesh Agarwal
2,994 Points

Hi! I tried this question just now. This passes:

public class PictureBook{
    val title = "Android Adventures"
}

You would want to use val instead of var whenever possible. This will lead to more robust code. Use var only when you absolutely need to change the variable.

3 Answers

Seth Kroger
Seth Kroger
56,414 Points
Seth Kroger
Seth Kroger
56,414 Points

You should be using class instead of fun.

Todd Anderson
Todd Anderson
4,260 Points
Todd Anderson
Todd Anderson
4,260 Points

Try var title = "Android Adventures";

:)

Vladimir Vasconcelos
Vladimir Vasconcelos
Courses Plus Student 6,433 Points
Vladimir Vasconcelos
Vladimir Vasconcelos
Courses Plus Student 6,433 Points 
public fun PictureBook(){

var title = "Android Adventures"
}

I got:

Bummer! Make sure PictureBook has a 'title' property and that it's a String
Todd Anderson
Todd Anderson
4,260 Points
Todd Anderson
Todd Anderson
4,260 Points

Hmm... Mine passes. I do notice you forgot the semi-colon after "Android Adventures";

public class PictureBook(){
  var title = "Android Adventures";
}
Raveesh Agarwal
Raveesh Agarwal
2,994 Points
Raveesh Agarwal
Raveesh Agarwal
2,994 Points

no. in Kotlin, "; " is not required always use val where possible. Declare var only when you absolutely need to