Попробуйте это ::
public static void main(String[] args) {
Scanner input = new Scanner (System.in);
int times=5;
int i = 1;
List<Integer> mylist=new ArrayList<>();
while( i <= times){
System. out. print(" Enter Number : ");
mylist.add(input.nextInt());
i++;
}
System.out.println(mylist.toString());
}
Вывод ::
Enter Number : 1
Enter Number : 2
Enter Number : 3
Enter Number : 4
Enter Number : 5
[1, 2, 3, 4, 5]