数组中的常见异常:
-
- 数组角标越界的异常:ArrayIndexOutOfBoundsExcetion
-
- 空指针异常:NullPointerException
*/
public class ArrayExceptionTest {
public static void main(String[] args) {
//1. 数组角标越界的异常:ArrayIndexOutOfBoundsExcetion
int[] arr = new int[]{1,2,3,4,5};
// for(int i = 0;i <= arr.length;i++){
// System.out.println(arr[i]);
// }
// System.out.println(arr[-2]);
// System.out.println("hello");
//2.2. 空指针异常:NullPointerException
//情况一:
// int[] arr1 = new int[]{1,2,3};
// arr1 = null;
// System.out.println(arr1[0]);
//情况二:
// int[][] arr2 = new int[4][];
// System.out.println(arr2[0][0]);
//情况三:
String[] arr3 = new String[]{"AA","BB","CC"};
arr3[0] = null;
System.out.println(arr3[0].toString());
}
}