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  1. /**
  2.  * Print Matrix in spiral order
  3.  * @author PRATEEK
  4.  */
  5.  
  6. class PrintSpiralMatrix {
  7.  
  8. 	/**
  9. 	 * Spiral order printing
  10. 	 * @param matrix
  11. 	 */
  12. 	public static void printSpiral(int[][] matrix)
  13. 	{
  14. 		int rowSize = matrix.length ;
  15. 		int colSize = matrix[0].length;
  16.  
  17. 		int row=0,col=0,i,j,k;
  18.  
  19. 		while(row < rowSize && col < colSize)
  20. 		{
  21. 			i=col;
  22. 			for(;i<colSize-col;i++)
  23. 				System.out.print(matrix[row][i]+"  ");
  24.  
  25.  
  26. 			i=row + 1;
  27. 			for(;i<rowSize-row;i++)
  28. 				System.out.print(matrix[i][colSize -col-1]+"  ");
  29.  
  30.  
  31. 			i=(colSize-1-col)-1;
  32. 			for(;i>=col;i--)
  33. 				System.out.print(matrix[rowSize -row-1][i]+"  ");
  34.  
  35. 			i=(rowSize-1-row)-1;
  36. 			for(;i>row;i--)
  37. 				System.out.print(matrix[i][col]+"  ");
  38.  
  39. 			row++;
  40. 			col++;
  41. 		}
  42. 	}
  43.  
  44. 	public static void main(String[] args) {
  45. 		int[][] matrix = { 
  46. 				{1,  2,   3,  4}, 
  47. 				{5,  6,   7,  8},
  48. 				{9,  10,  11, 12}, 
  49. 				{13, 14,  15, 16},
  50. 				{17, 18,  19, 20},
  51. 		};
  52. 		printSpiral(matrix);
  53. 	}
  54. }
  55.  
Success #stdin #stdout 0.07s 380224KB
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https://ideone.com/5o5Akz
Matrix:Spiral printing
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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