二维数组回形输出

public class 二维数组回形输出 {
    public static void main(String[] args) {
        int[][] p = new int[4][5];
        for (int i = 0; i < p.length; i++) {
            for (int j = 0; j < p[i].length; j++) {
                int k = new Random().nextInt(1000);
                p[i][j] = k;
                System.out.print(k + " ");
            }
            System.out.println();
        }
        System.out.println();
        int row = p.length, col = p[0].length;
        int max = col * row;//输出结束则停止输出
        int times = 0;
        for (int n = 0; ; n++) {
            for (int j = n; j < col - n; j++) {//输出回形的上面的行
                System.out.println(p[n][j]);
                times++;
            }
            if (max == times) break;
            for (int i = n + 1; i < row - n; i++) {//输出回形的右边的列
                System.out.println(p[i][col - n - 1]);
                times++;
            }
            for (int j = col - n - 2; j >= n; j--) {
                System.out.println(p[row - n - 1][j]);//输出回形的下面的行
                times++;
            }
            if (max == times) break;
            for (int i = row - n - 2; i > n; i--) {//输出回形的左边的列
                System.out.println(p[i][n]);
                times++;

            }
            if (max == times) break;
        }
    }

}

来源：CSDN

作者：蔡燃

链接：https://blog.csdn.net/qq_35758320/article/details/104029708