一个长度为8的数组，定义数组里的8个值为随机变量 遍历数组进行倒序遍历，然后求数组之和和最大值和最大值的下角标Java

···java
package jldx01;

public class Demo8 {
public static void main(String[] args) {
int arr[] = new int[8];
double sum = 0;
int max = arr[0];
int maxIndex = 0;
for (int i = 0; i < arr.length; i++) {
arr[i] = (int) (Math.random() * 100 + 1);//进行数组范围取值1到100

    }
    for (int i = arr.length - 1; i >= 0; i--) {//进行数组倒叙
        System.out.println(arr[i] + "t");
    }
    for (int i = 0; i 

}
···