小编Dar*_*nce的帖子

 String letterGrade = "F"; 
if (grade >= 90) { letterGrade = "A"; }
if (grade >= 80) { letterGrade = "B"; } 
if (grade >= 70) { letterGrade = "C"; } 
if (grade >= 60) { letterGrade = "D"; }

只是一个我无法弄清楚的硬件问题.

当用户输入0时,我试图让我的数组取消,但它似乎想要取消任何输入的数字.

import java.util.Scanner;

public class Assignment2
{
     public static void main (String[] args)
     {

    Scanner scan= new Scanner(System.in);
    int count=0;
    double[] nums= new double[100];

    for(int i=0;i<nums.length;++i)
    {
        nums[i]= scan.nextDouble();
        nums[i]=i;
        if (i == 0){
            break;}
        count++;
        }
}
}