Java: Positive Number Array

/*
Please implement this method to
return a new array with only positive numbers from the given array.
The elements in the resulting array shall be sorted in the ascending order.

*/

 

1. public class PositiveNumberArray {


2. /**


3. * @param args


4. */


5. public static void main(String[] args) {


6. // TODO Auto-generated method stub


7. int a[] = {3,5,6,30,-3,-3,-3,5,3,-3};


8. for(int i : retainPositiveNumbers(a))


9. System.out.println(i);


10. }




12. public static int[] retainPositiveNumbers(int[] a) {


13. /*


14. Please implement this method to


15. return a new array with only positive numbers from the given array.


16. The elements in the resulting array shall be sorted in the ascending order.




18. */




20. int len=0;


21. int b[];


22. for(int i=0;i<a.length;i++)


23. {


24. if(a[i]>0)


25. len++;


26. }






29. b = new int[len];


30. for(int i=0,j=0;i<a.length;i++)


31. {


32. if(a[i]>0)


33. {


34. b[j]=a[i];


35. j++;


36. }


37. }




39. int temp;


40. for(int i=0;i<b.length-1;i++)


41. {


42. for(int j=i+1;j<b.length;j++)


43. {


44. if(b[j]<b[i])


45. {


46. temp=b[j];


47. b[j]=b[i];


48. b[i]=temp;


49. }


50. }




52. }




54. return b;


55. }


56. }

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