在2d数组中查找峰值时出现IndexOutofBounds异常

public class PeakFinder {
    public static int findPeak(int[][] matrix) {
        int rows = matrix.length;
        int cols = matrix[0].length;

        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                int current = matrix[i][j];
                boolean isPeak = true;

                // Check if current element is a peak
                if (i > 0 && matrix[i - 1][j] > current) {
                    isPeak = false; // Check above element
                }
                if (i < rows - 1 && matrix[i + 1][j] > current) {
                    isPeak = false; // Check below element
                }
                if (j > 0 && matrix[i][j - 1] > current) {
                    isPeak = false; // Check left element
                }
                if (j < cols - 1 && matrix[i][j + 1] > current) {
                    isPeak = false; // Check right element
                }

                if (isPeak) {
                    return current; // Found a peak
                }
            }
        }

        return -1; // No peak found
    }

    public static void main(String[] args) {
        int[][] matrix = {
            {1, 2, 3},
            {4, 5, 6},
            {7, 8, 9}
        };

        try {
            int peak = findPeak(matrix);
            System.out.println("Peak value: " + peak);
        } catch (IndexOutOfBoundsException e) {
            System.out.println("IndexOutOfBoundsException occurred. Please check the array bounds.");
        }
    }
}