Java边界检查优化示例

public class BoundaryCheckExample {
    public static void main(String[] args) {
        int[] arr = {1, 2, 3, 4, 5};
        try {
            int value = getValue(arr, 5);
            System.out.println(value);
        } catch (ArrayIndexOutOfBoundsException e) {
            System.out.println("数组越界错误");
        }
    }

    public static int getValue(int[] arr, int index) {
        if (index < 0 || index >= arr.length) {
            throw new ArrayIndexOutOfBoundsException("数组越界错误");
        }
        return arr[index];
    }
}