java.lang.arrayindextofbundseception
时间: 2024-05-15 10:17:06 浏览: 8
The java.lang.ArrayIndexOutOfBoundsException exception is thrown when an invalid index is used to access an array. This means that the index used to access an array is either negative or greater than or equal to the length of the array.
For example, if an array has a length of 5, the valid indices for the array are 0, 1, 2, 3, and 4. If an index of 5 is used to access the array, an ArrayIndexOutOfBoundsException will be thrown.
Here is an example code snippet that can throw an ArrayIndexOutOfBoundsException:
```
int[] arr = new int[3];
arr[3] = 10; // This will throw an ArrayIndexOutOfBoundsException
```
To avoid this exception, make sure to use valid indices when accessing an array. Also, be careful when iterating over an array to ensure that the index used to access the array is within the valid range.
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