Calculations.kt

package logic

public class Calculations {
    public static fun strSlice(str: String) : ArrayList<Int> {
        val arraylist = ArrayList<Integer>()
        for (i: Int; i < str.length; i++) {
            if(str[i] < '9' && str[i] >= '0')
                arraylist.add(str[i] - '0');
        }
        return arraylist
    }
}