Hey, at what point is the value converted to Int in Kotlin? AS is showing a warning that Byte is exp...

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[Anastasia Finogenova]

Hey, at what point is the value converted to Int in Kotlin? AS is showing a warning that Byte is expected but found Int even though in the Java version of the code it is picked up as byte.

Kotlin:
var r = byteArray[3 + i]
If (r > 0) r += 255 //the warning is shown here

Java:

byte r = byteArray[3 + i]
If (r > 0) r += 255; //the warning is not shown

[gildor]

It’s correct. Kotlin is designed to be explicit for such implcit type convertations

[Anastasia Finogenova]

I think I got it, thanks

[Stephan Schroeder]

and the way to be explicit about it is to cal r.toInt(). But you use the += operator, so you would need to reasign. So better start of with an int.

var r = byteArray[3 + i].toInt()
if (r>0) r+= 255