Am having this error, unresolved reference: play, on MusicPlayer. My code below On Kotlin

Question

class MusicPlayer {
private var songs: Array<String> = arrayOf("Purple Haze","Under Pressure","Walk This Way","Playing Purple Haze","Stop")
//your code goes here
fun add(track: String): Unit{

songs += track

}
fun show(){

println("$songs[0]\n$songs[1]\n$[2]\n$songs[3]")

}

fun pay(){
val play = songs
println("$songs[0]")
}

}
fun main(args: Array<String>) {
val m = MusicPlayer()

while(true) {
var input = readLine()!!
if(input == "stop") {
break
}
m.add(input)
}
m.show()
m.play()
}

Answer 1

Dave Enyi Did you name the function pay() in error? Did you mean to name it play()

Answer 2

Dave Enyi congrats you did it👍👍

Answer 3

Dave Enyi Good work!

Answer 4

Hi Dave Enyi
I couldn't get any of your functions to work.

I suggest you work on one aspect of the code at a time, comment out the other calls.

Remember, you either need to return from a function, or print the result. fun add() does nothing at the moment.

Also, check your types, and you may wish to use a loop in your fun show() because the tests will have a varied number of songs.

Good luck

Answer 5

You should try this :

class MusicPlayer {
private var songs: Array<String> = arrayOf()

//your code goes here

fun add(name:String){
songs += name
}
fun show(){
songs.forEach(){
item -> println(item)
}
}
fun play(){

println("Playing "+ songs[0])
}
}
fun main(args: Array<String>) {
val m = MusicPlayer()

while(true) {
var input = readLine()!!
if(input == "stop") {
break
}
m.add(input)
}
m.show()
m.play()
}

Answer 6

Dave Enyi Congrats
Well done!

Answer 7

Thanks

Answer 8

My final code up and running thank you so much guyz much love 😍
I really appreciate you all for your support

class MusicPlayer {
private var songs: Array<String> = arrayOf()
//your code goes here
fun add(track: String): Array<String>{
songs = songs + track
return songs
}

fun show(){

for(track in songs.indices){
println(songs[track])
}

}

fun play(){
println("Playing "+songs[0])

}

}
fun main(args: Array<String>) {
val m = MusicPlayer()

while(true) {
var input = readLine()!!
if(input == "stop") {
break
}
m.add(input)
}
m.show()
m.play()
}

Answer 9

Yes and is throwing an error message saying unresolved reference: play

Answer 10

// here is the complete code but the play() is not working

class MusicPlayer {
private var songs: Array<String> = arrayOf("Purple Haze","Under Pressure","Walk This Way","Playing Purple Haze","Stop")
//your code goes here
fun add(track: String): Unit{

songs += track

}
fun show(){

println(songs[0])
println(songs[1])
println(songs[2])
println(songs[3])

}

fun play(){

}

}
fun main(args: Array<String>) {
val m = MusicPlayer()

while(true) {
var input = readLine()!!
if(input == "stop") {
break
}
m.add(input)
}
m.show()
m.play()
}