kotlin - 如何从 Kotlin 的列表中创建随机组？

Question

这是我第一次使用 Kotlin，对语法非常陌生。我正在尝试制作一个程序，该程序将从用户那里读取名称列表和组数，然后生成这些名称的随机分组。如果名称的数量不能被组的数量整除，则某些组会更短。现在，我坚持尝试将我的列表分成偶数组。我在想我应该做一个 subList，但是 1) 不知道如何去做 2) 不确定这是否是正确的方法
这就是我现在所拥有的:

fun main(args: Array<String>) {
    val number1 = Scanner(System.`in`)
    print("Enter how many names will be entered: ")
    //nextInt() method used to take the next Int value
    //and stores into nameNum
    val nameNum:Int = number1.nextInt()

    val number2 = Scanner(System.`in`)
    print("Enter how many groups you want too divide the names into: ")
    //nextInt() method used to take the next Int value
    //and stores into nameNum
    val groupsNum:Int = number2.nextInt()

    //test
    println("You entered that you have $nameNum number of names")

    println("You entered that you have $groupsNum number of groups")

    print("Please input the names of group members separated by *two* spaces: ")
    val input: String? = readLine() //reads next input for names
    val groupNames: List<String> = input!!.split("  ".toRegex()) //separates the names out using two spaces and puts into list
    println("These are the names entered: $groupNames ") //test

    val shuffledNames = groupNames.shuffled() //shuffling names of list so that a random grouping can be made
    println("These are the names shuffled: $shuffledNames") //test

    val namesInGroup = nameNum / groupsNum //by dividing number of names NameNum by number of groups groupsNum
    //will determine how many names will go in each group
}``

Answer 1

我想你可以用 chunked

val numItem = nameNum / groupsNum + if (nameNum % groupsNum != 0) 1 else 0
val groups = groupNames.chunked(numItem)
println(groups)