小朋友登记 调用方法

public static void main(String[] args) {
    int[] arr = new int[5];
    ageTion(arr);
    agesum(arr);
    double pj =agesum(arr)/5;
    System.out.println(agesum(arr));
    System.out.println(pj);
}
public static void ageTion(int[] arr) {
    Scanner sc = new Scanner(System.in);

    for (int i = 0; i < arr.length; i++) {
        System.out.println("请输入第" + (i + 1) + "个小朋友的年龄");
        int number = sc.nextInt();
        if (number > 5 || number < 3) {
            System.out.println("请输入正确的年龄");
        } else {
            arr[i] = number;
        }
    }
}
public static int agesum(int[] arr) {
    int sum = 0;
    for (int i = 0; i < arr.length; i++) {
        sum += arr[i];
    }
    return sum;
}