回文二维数组

[java]代码库

int n = 7;
		int[][] arr = new int[n][n];

		int count = 0; // 要显示的数据
		int maxX = n - 1; // x轴的最大下标
		int maxY = n - 1; // Y轴的最大下标
		int minX = 0; // x轴的最小下标
		int minY = 0; // Y轴的最小下标
		while (minX <= maxX) {
			for (int x = minX; x <= maxX; x++) {
				arr[minY][x] = ++count;
			}
			minY++;
			for (int y = minY; y <= maxY; y++) {
				arr[y][maxX] = ++count;
			}
			maxX--;
			for (int x = maxX; x >= minX; x--) {
				arr[maxY][x] = ++count;
			}
			maxY--;
			for (int y = maxY; y >= minY; y--) {
				arr[y][minX] = ++count;
			}
			minX++;
		}

		for (int i = 0; i < arr.length; i++) {
			for (int j = 0; j < arr.length; j++) {
				String space = (arr[i][j] + "").length() == 1 ? "0" : "";
				System.out.print(space + arr[i][j] + " ");
			}
			System.out.println();
		}

[代码运行效果截图]