来自ArrayList的平均值/最大值

import java.util.ArrayList;

public class ArrayListExample {
    public static void main(String[] args) {
        ArrayList<Integer> numbers = new ArrayList<>();
        numbers.add(5);
        numbers.add(10);
        numbers.add(15);
        numbers.add(20);
        numbers.add(25);

        // 计算平均值
        int sum = 0;
        for (int i = 0; i < numbers.size(); i++) {
            sum += numbers.get(i);
        }
        double average = (double) sum / numbers.size();
        System.out.println("平均值：" + average);

        // 找到最大值
        int max = numbers.get(0);
        for (int i = 1; i < numbers.size(); i++) {
            if (numbers.get(i) > max) {
                max = numbers.get(i);
            }
        }
        System.out.println("最大值：" + max);
    }
}