`val date` and `val source` kotlinlang #android

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Title

e

edwardwongtl

11/16/2017, 6:00 AM

val date

and

val source

?

o

oianmol

11/16/2017, 6:01 AM

i used var

abstract class Message { abstract var date: Long; abstract var source: MessageSource abstract var type: MessageType } data class TextMessage( override var date: Long = 0L, override var source: MessageSource = MessageSource.BOT, override var type: MessageType = MessageType.TEXT, var text: String ) : Message()

g

gildor

11/16/2017, 6:03 AM

TextMessage(text = "my text")

and should work already with your code

or just make first constructor argument and you can write

TextMessage("my text")

instead

o

oianmol

11/16/2017, 6:05 AM

have you tried ? it doesn't work. it asked me to add all the parameteres to the args

can you paste the way you have written your constructor

g

gildor

11/16/2017, 6:07 AM

Just copied your code and the first way works

o

oianmol

11/16/2017, 6:07 AM

thanks buddy it worked

TextMessage(text = "my text")

g

gildor

11/16/2017, 6:08 AM

second should work if text will be the first argument:

data class TextMessage(
        var text: String,
        override var date: Long = 0L,
        override var source: MessageSource = MessageSource.BOT,
        override var type: MessageType = MessageType.TEXT
) : Message()

Kotlin doesn’t allow to mix optional and non-optional arguments without explicit argument name, so better to put args with default values after other args

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