Android kotlin，从arrayObject创建arraylist

尝试使用下面代码中的Arraylist从我的对象生成Arraylist。 我的密码是：-

       var i = 1.0
    var list: ArrayList<Any> = ArrayList()
    while (i <= n) {
        intPerMonth = P * R
        P = P - (e - intPerMonth)
        Log.e("TAG", "Month -> " + i.toInt())
        Log.e("TAG", "Interest per month -> " + Math.round(intPerMonth))
        Log.e("TAG", "Principal per month -> " + Math.round(e - intPerMonth))
        Log.e("TAG", "Balance Principal -> " + Math.round(P))
        Log.e("TAG", "***************************")

        list = arrayListOf(
            i.toInt(),
            Math.round(intPerMonth),
            Math.round(e - intPerMonth),
            Math.round(e - intPerMonth),
            Math.round(P)
        )
        i++
        Log.e("myArray", list.toString()) // this list.toString() is my output

    }

---

看起来你想要一个列表？尝试在每次迭代中创建一个内部列表，然后将其添加到列表中，如下所示：

var i = 1.0
var list: ArrayList<Any> = ArrayList()
while (i <= n) {
    intPerMonth = P * R
    P = P - (e - intPerMonth)
    Log.e("TAG", "Month -> " + i.toInt())
    Log.e("TAG", "Interest per month -> " + Math.round(intPerMonth))
    Log.e("TAG", "Principal per month -> " + Math.round(e - intPerMonth))
    Log.e("TAG", "Balance Principal -> " + Math.round(P))
    Log.e("TAG", "***************************")

    var innerList = arrayListOf( // create a different list here
        i.toInt(),
        Math.round(intPerMonth),
        Math.round(e - intPerMonth),
        Math.round(e - intPerMonth),
        Math.round(P)
    )
    list.add(innerList) // add the inner list to your list
    i++
}
Log.e("myArray", list.toString()) // this prints the new list of lists

---

尝试使用ArrayList类型这是kotlin bro@alesandrogiordano你能解释一下编码吗@AlesandGiordanoyes对不起，我将尝试在控制台中模拟它。。等等，好的，谢谢你@AlesandroGiordano

var i = 1.0
var list: ArrayList<Any> = ArrayList()
while (i <= n) {
    intPerMonth = P * R
    P = P - (e - intPerMonth)
    Log.e("TAG", "Month -> " + i.toInt())
    Log.e("TAG", "Interest per month -> " + Math.round(intPerMonth))
    Log.e("TAG", "Principal per month -> " + Math.round(e - intPerMonth))
    Log.e("TAG", "Balance Principal -> " + Math.round(P))
    Log.e("TAG", "***************************")

    var innerList = arrayListOf( // create a different list here
        i.toInt(),
        Math.round(intPerMonth),
        Math.round(e - intPerMonth),
        Math.round(e - intPerMonth),
        Math.round(P)
    )
    list.add(innerList) // add the inner list to your list
    i++
}
Log.e("myArray", list.toString()) // this prints the new list of lists