25 lines
760 B
Java
25 lines
760 B
Java
package com.inmind.array01;
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/**
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* ArrayIndexOutOfBoundsException
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* 数组索引越界异常
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* 注意：数组的长度固定不变的，数组的最大的索引值为arr.length-1
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* 0~(arr.length-1)
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*/
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public class Demo03 {
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public static void main(String[] args) {
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int[] arr = {1, 2, 3};
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System.out.println(arr[0]);
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System.out.println(arr[1]);
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System.out.println(arr[2]);
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//如果使用错误的索引访问数组的数据，那就会报越界异常java.lang.ArrayIndexOutOfBoundsException
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//System.out.println(arr[3]);
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int index = 2;
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if (index > 0 && index < arr.length) {
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System.out.println(arr[index]);
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}
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System.out.println("程序正常结束");
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}
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}
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