JAVA，数组的平均值的做法

Question

Answer 1

 public static void main(String[] args){
        int[]  num={89,78,85,67,92,74,99,81};
        double avg;
        double sum=0;
        System.out.println("输出：");
        for (int n=0;n<num.length;n++){
            System.out.print(num[n]+"\t");
            sum=sum+num[n];
        }
        avg=sum/8;
        System.out.println("");
        System.out.println(avg);
    }