求助！！键盘上输入两个double类型的浮点数，求这两个数的乘积

import java.util.Scanner;
public class Multi {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double val1 = scanner.nextDouble();
        double val2 = scanner.nextDouble();
        System.out.println(val1 * val2);
    }
}