Kotlin, pass in the resource ID as integer but it contains alphabet letter

[JoneLoveIT]

why pass in the resource ID as integer but it contains alphabet letter? i dont understand it dont get any error. As i have learnt that string can be used for "abc" or "abc123", while int can only be used for "123"

 

[jj9987]

R.string.* is a reference to an integer that points to your actual String.

[JoneLoveIT]

16 minutes ago, jj9987 said:

R.string.* is a reference to an integer that points to your actual String.

Does that mean it is always int?

it is wrong when it is

- data class Affirmation(val stringResourceId: Double)

- data class Affirmation(val stringResourceId: String)

[Sauron]

15 minutes ago, JoneLoveIT said:

it is wrong when it is

- data class Affirmation(val stringResourceId: Double)

- data class Affirmation(val stringResourceId: String)

Yes, because resource IDs are always stored as integers even if they reference a string or a double.

 

You should work on your understanding of the difference between a variable and an inline string... in most programming languages, if you want to type out a string value you need to enclose it in quotation marks (" or '). Otherwise it's interpreted as a variable name. On the other hand, pure numbers are typically assumed to be values and not variable names.