程序代码：

import java.util.Scanner;
public class Calculate {
    public static void main(String[] args) {
        System.out.println("请输入要计算的整数个数:");
        int count = new Scanner(System.in).nextInt();
        int sum = 0;
        for (int i = 1; i < count + 1; i++) {
            System.out.println("请输入第" + 1 + "个整数:");
            sum += new Scanner(System.in).nextInt();
        }
        System.out.println("和:" + sum + "\r\n平均:" + sum * 1.0 / count);
    }
}