求大神们帮忙解答一下

定义一个数组来存储10个学生的成绩{72,89,65,58,87,91,82,71,93,76}，计算并输出所有成绩的总分、平均分。

int[] scores = new int[]{72, 89, 65, 58, 87, 91, 82, 71, 93, 76};
int sum = 0;
int aveage = 0;
for (int score : scores) {
sum += score;
}
aveage = sum / scores.length;
System.out.println(sum + ":" + aveage);

int[] grade = new int[]{72,89,65,58,87,91,82,71,93,76};
int sum = 0; //总分
int avg = 0; //平均分
for(int i = 0; i < 10; i++){
        sum += grade[i];
}
avg = sum/10;

public static void main(String[] args) {
        Integer[] achievementArray = new Integer[] {72,89,65,58,87,91,82,71,93,76};
        Integer sum = 0;
        for (Integer integer : achievementArray) {
            sum += integer;
        }
        System.err.println("学生的总成绩为：" + sum);
        System.err.println("学生的平均成绩为(整数)：" + (sum / achievementArray.length));
        System.err.println("学生的平均成绩为(含小数)：" + ((float)sum / achievementArray.length));
    }