import java.util.Scanner;

public class Demo {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        final int N = 10;
        float[] array = new float[N];
        float Max, Min, Average = 0;
        System.out.println("please enter the " + N + " students test results in order:");
        for (int i = 0; i < N; i++) {
            array[i] = input.nextFloat();
        }
        Max = Min = array[0];
        for (int i = 0; i < N; i++) {
            if (array[i] > Max)
                Max = array[i];
            if (array[i] < Min)
                Min = array[i];
            Average += array[i];
        }
        Average /= N;
        System.out.format("highest score:%.1f,lowest score:%.1f,the average score:%.2f",Max,Min,Average);
    }
}

说明：

注意Java中接收用户输入的方法，同时考虑对一维数组“动态赋值”的操作。

C语言

#include <stdio.h>
#define N 10

int main()
{
    float array[N], Max,Min,Average;
    printf("please enter the N students test results in order:");
    for (int i = 0; i < N; i++)
    {
        scanf("%f", &array[i]); 
    }
    Max =Min=array[0];
    for (int i = 0; i < N; i++)
    {
        if (array[i] > Max)
            Max = array[i];
        else if (array[i] < Min)
            Min = array[i];
        Average += array[i];
    }
    Average /= N;
    printf("highest score:%.1f,lowest score:%.1f,the average score:%.3f", Max, Min, Average);
    return 0;
}