java - While 语句中整数的最小值和最大值

Question

我是 Java 初学者，正在通过类(class)学习，但是当尝试执行 while 语句时，有人可以输入 0 到 100 之间的数字，直到他们输入 999，然后给出输入的数字数，最高数、最低数和所有数的平均值。

我目前拥有的代码导致 999 第一次没有注册，最高和最低数字都是多位数字，数字数量包括超出限制的任何数字，999 也是如此平均值。

这是我所拥有的:

import java.util.Scanner;

public class TestScoreStatistics {

    public static void main(String[] args) {
        int numberOfScores = 0;
        int highest;
        int lowest;
        double average;
        Integer score = 0;
        int sumOfScores = 0;
        Scanner input = new Scanner(System.in);

        System.out.println("Please enter a grade or enter 999 to finish >> ");
        score = input.nextInt();
        sumOfScores = sumOfScores + score;

        while (score < 100 || score > 0) {
            ++numberOfScores;
            System.out.println("Please enter a grade or enter 999 to finish >> ");
            score = input.nextInt();
            sumOfScores = sumOfScores + score;
            ++numberOfScores;

            while (score > 100 || score < 0) {
                System.out.println("You entered an invalid score. Please enter a valid test score.");
                System.out.println("Please enter a grade or enter 999 to finish >> ");
                score = input.nextInt();
                sumOfScores = sumOfScores + score;

                if (score == 999) {
                    highest = score.MIN_VALUE;
                    lowest = score.MAX_VALUE;
                    average = sumOfScores / numberOfScores;
                    System.out.println("Number of Scores you entered: " + numberOfScores);
                    System.out.println("Highest Score: " + highest);
                    System.out.println("Lowest Score: " + lowest);
                    System.out.println("Average Score: " + average);
                }
            }
        }
    }
}

谢谢。

Answer 1

考虑这一行

while(score < 100 || score > 0)

如果分数是999，你认为它包含在内吗？

如果您使用简单的调试，您会立即发现这一点