我输入2147483648,显示error:For input string: "2147483648"

我也是，你们都不自测的吗？

我觉得主要是需求不明确,因为整数的范围无限大,而没有任何东西能容下,所以没有完美的答案

呵呵，

大神说的对，还是太年轻了。现在去华为了吗？

public class WanWan {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int []arr=new int[8];
        int sum=0;
        int max,min;
        double av;
            for (int j = 0; j < arr.length; j++) {
                System.out.println("请输入整数:");
                int t=sc.nextInt();
                if (t>0) {
                    arr[j]=t;
                    max=arr[0];
                    min=arr[0];
                    sum+=t;
                    if (max<arr[j]) {
                        max=arr[j];
                    }
                    if (min>arr[j]) {
                        min=arr[j];
                    }
                }else{
                    System.out.println("请输入正整数:");
                    j--;
                    continue;
                }
                if (j==7) {
                    System.out.println("最大:"+max);
                    System.out.println("最小:"+min);
                    av=sum*1.0/arr.length;
                    System.out.println("平均:"+av);
                }
            }
            System.out.println("和:"+sum);
    }
}