java - 仅验证用户输入的 int 或 double 值

Question

我需要验证用户的输入，以便输入的值是 double 或 int；然后将 int/double 值存储在数组中，并在用户输入无效数据时显示错误消息。

出于某种原因，如果用户输入无效数据，我的代码就会崩溃。
您能检查一下我下面的代码并告诉我可能有什么问题吗？

public static double[] inputmethod() {
    double list[] = new double[10];
    Scanner in = new Scanner(System.in);
    double number;
    System.out.println("please enter a double : ");

    while (!in.hasNextDouble()) {
        in.next();
        System.out.println("Wrong input, Please enter a double! ");
    }
    for (int i = 0; i < list.length; i++) {
        list[i] = in.nextDouble();
        System.out.println("you entered a double, Enter another double: ");

    }
    return list;
}

Answer 1

为了验证用户是否双重或不这样做，如下所示:

 public class TestInput {

    public static double[] inputmethod() {
        double list[] = new double[10];
        Scanner in = new Scanner(System.in);
        double number;
        System.out.println("please enter a double : ");

        for (int i = 0; i < list.length; i++) {
            while (!in.hasNextDouble()) {
                in.next();
                System.out.println("Wrong input, Please enter a double! ");
            }
            list[i] = in.nextDouble();
            System.out.println("you entered a double, Enter another double: ");

        }
        return list;
    }

    public static void main(String args[]) {
        inputmethod();
    }

}