SpiralCicle

gistfile1.txt

import java.util.Scanner;

public class SpiralCicle {

	private static int n = 0;
	private static int[][] array;

	public static void main(String [] args) {
		Scanner in = new Scanner(System.in);
		n = in.nextInt();
		
		if (n < 1 || n > Integer.MAX_VALUE / 2) {
			System.out.println("Wrong argument");
		} else {
			int size = 2 * n - 1;
			array = new int[size][size];
			
			for (int i = 0; i < array.length; i++) {
				for (int j = 0; j < array[i].length; j++) {
					array[i][j] = (int) (Math.random() * 9);
				}
			}
			
			System.out.println("");
			
			for (int i = 0; i < array.length; i++) {
				for (int j = 0; j < array[i].length; j++) {
					System.out.print(array[i][j] + ", ");
				}
				System.out.println("");
			}
			
			System.out.println("");
			
			printArray();
		}
	}
	
	public static void printArray() {
		int arrayCenter = n - 1;
		int i = arrayCenter;
		int j = arrayCenter;
		
		System.out.print(array[i][j] + " ");
		
		while ((i != 0) || (j != 0)) {
			
			if (i > j) {
				if ((double) (i + j) / arrayCenter == 2.0) {
					j++;
				} else if (i + j < 2 * arrayCenter) {
					i++;
				} else if (i + j > 2 * arrayCenter) {
					j++;
				}
			} else if (i < j) {
				if ((double) (i + j) / arrayCenter == 2.0) {
					j--;
				} else if (i + j > 2 * arrayCenter) {
					i--;
				} else if (i + j < 2 * arrayCenter) {
					j--;
				}
			} else if (i == j) {
				if (i <= arrayCenter) {
					j--;
				} else {
					i--;
				}
			}
			
			System.out.print(array[i][j] + " ");
		}
	}
}