package com.wuming.struct;public class Demo09 {public static void main(String[] args) {int[] a={1,2,3,4,5,6,7,8};for (int i = 0; i <=a.length; i++) {//=去掉,下标越界,数组下标为[0,length-1]System.out.println(a[i]);}} }
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Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 8
at com.wuming.struct.Demo09.main(Demo09.java:7)
小结:
1.数组是相同数据类型的有序集合
2.数组也是对象,相对于对象的成员变量
3.数组长度不可变,越界报ArrayIndexOutOfBoundsException