Java中求和与平均值

建立一个ss类

public class ss { public static void main(String[] args) {  // TODO Auto-generated method stub   Scanner input = new Scanner(System.in);      System.out.println("你想输入几个数字：");        int count = input.nextInt();        int num[] = new int[count];    int sum = 0;    double avg = 0;    System.out.print("输入的数字为：");   for (int i = 0; i < num.length; i++) {                    num[i] = input.nextInt();        sum += num[i];   }     avg = sum / count;       System.out.println("它们的和是：" + sum);   System.out.println("它们的平均值是：" + avg);         } }