下标越界

数组的四个基本特点

package array;

public class ArrayDemo03 {
    public static void main(String[] args) {
        int[] arrays ={1,2,3,4,5,};

        //打印全部的数组元素
        for (int i = 0; i <arrays.length; i++) {
            System.out.println(arrays[i]);
        }
        System.out.println("===================");
        //计算所有元素的和
        int sum = 0;
        for (int i = 0; i <arrays.length; i++) {
            sum = sum + arrays[i];
        }
        System.out.println("sum="+sum);
        System.out.println("=============");
        //查找最大元素
        int max = arrays[0];

        for (int i = 1; i <arrays.length; i++) {
            if(arrays[i]>max){
                max=arrays[i];
            }
        }

        System.out.println("max="+max);


    }
}