给定一个5×5的矩阵，每行只有一个最大值，每列只有一个最小值，寻找这个矩阵的鞍点。 鞍点指的是矩阵中的一个元素，它是所在行的最大值，并且是所在列的最小值。java实现

public class Matrix {
    public static void main(String[] args) {
        int[][] matrix = { { 1, 2, 3, 4, 5 }, { 6, 7, 8, 9, 10 }, { 11, 12, 13, 14, 15 }, { 16, 17, 18, 19, 20 },
                { 21, 22, 23, 24, 25 } };
        int row = matrix.length;
        int col = matrix[0].length;
        boolean flag = false;
        for (int i = 0; i < row; i++) {
            int max = matrix[i][0];
            int maxIndex = 0;
            for (int j = 1; j < col; j++) {
                if (matrix[i][j] > max) {
                    max = matrix[i][j];
                    maxIndex = j;
                }
            }
            int min = matrix[0][maxIndex];
            for (int j = 0; j < row; j++) {
                if (matrix[j][maxIndex] < min) {
                    min = matrix[j][maxIndex];
                }
            }
            if (max == min) {
                System.out.println("The saddle point is " + max + " at row " + (i + 1) + " and column " + (maxIndex + 1));
                flag = true;
            }
        }
        if (!flag) {
            System.out.println("There is no saddle point in the matrix.");
        }
    }
}