Kotlin hashmap "expecting member declaration"-CodePudding

class Config() {
var items = HashMap<String, Int>()
items.put("D", 1000)
items["A"] = 10
items["B"] = 20
items["C"] = 30

}

I think there is no problem, But the error happend "expecting member declaration" How can I dodge that error

CodePudding user response：

you can't just fill in hashMap in the middle of the class. Do it in init or function

class Config{

    private val items = HashMap<String, Int>()

    fun putInfo(){
        items["A"] = 1000
        items["B"] = 500
        items["C"] = 200
        //...
    }

}

class Config{

    private lateinit var items: HashMap<String, Int>

    init {
        items = HashMap<String, Int>()
        items["A"] = 1000
        items["B"] = 500
        items["C"] = 200
        //...
    }

}

CodePudding user response：

class Config {
lateinit var items: HashMap<String, Int>
init {
    items.put("D", 1000)
    items["A"] = 10
    items["B"] = 20
    items["C"] = 30
}}