学步园

/*
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 * and open the template in the editor.
 */
package cn.mili.tasty.web;

/**
 *
 * @author YHC
 */
public class Test {

    public static void main(String args[]) {
        int temp = 1, direction = 1;
        int y = 0, x = 0;
        int max = 5;
        int[][] data = new int[max][max];
        while (temp < max * max) {
            data[y][x] = temp;
            switch (direction) {
                case 1://右
                    if (x + 1 < max && data[y][x + 1] == 0) {
                        temp++;
                        x++;
                    } else {
                        direction = 2;
                    }
                    break;
                case 2://下
                    if (y + 1 < max && data[y + 1][x] == 0) {
                        temp++;
                        y++;
                    } else {
                        direction = 3;
                    }
                    break;
                case 3://左
                    if (x - 1 >= 0 && data[y][x - 1] == 0) {
                        temp++;
                        x--;
                    } else {
                        direction = 4;
                    }
                    break;
                case 4://上
                    if (y - 1 >= 0 && data[y - 1][x] == 0) {
                        temp++;
                        y--;
                    } else {
                        direction = 1;
                    }
                    break;
                default:
                    break;
            }
            data[y][x]=temp;
        }
        
        for (int i = 0; i < max; i++) {
            for (int j = 0; j < max; j++) {
                System.out.print(data[i][j]+"\t");
            }
            System.out.println("");
        }
    }

}

运行结果:

1	2	3	4	5	
16	17	18	19	6	
15	24	25	20	7	
14	23	22	21	8	
13	12	11	10	9	
------------------------------------------------------------------------
BUILD SUCCESS
------------------------------------------------------------------------