appending zeros to make number of 10 digit

Question

I know it is a simple question and I know the way to do it, only need of mine here is Performance and with less time as possible it should do.

I am getting input as

long l = 149;

I want to make this number of size 10 with additional numbers to be added at starting to make it of 10 digit. above number should get converted to,

   0000000149.

Similarly,

1      -> 0000000001
13     -> 0000000013
888888 -> 0000888888

1. I tried with loop, like checking number length, subtracting number length by 10, then adding number of zero as the subtraction result i got.

2 Already created array like

arr[0, 00, 000, 0000, 00000, 000000, 0000000, 00000000, 000000000, 0000000000];

here I am doing same thing, subtracting my number length with 10 and getting arr[numberLenth -10] + number

I am getting desired result.

I want to make sure to check is there any better solution to this like using bitwise operator for such requirement?

Thanks

See http://stackoverflow.com/questions/473282/left-padding-integers-with-zeros-in-java — , Jul 30 '13 at 07:39
Or may be this - http://stackoverflow.com/questions/4469717/left-padding-a-string-with-zeros — SSaikia_JtheRocker, Jul 30 '13 at 07:40
in which way are you creating these formatting? If console, you can always just do System.out.format("%10d", numberVariable); — user2277872, Jul 30 '13 at 07:41

ChanceLai · Accepted Answer · 2013-07-30T08:17:49.283

1

Do you like this?

String.format("%010d", 123);

edited Jul 30 '13 at 08:17

answered Jul 30 '13 at 07:43

ChanceLai

`"%10d"` prints leading zeroes? Since when? – Ingo Jul 30 '13 at 07:44
I got the answer, i need to do like String data = String.format("%010d", 1234); – Jayesh Jul 30 '13 at 07:48

1 Answers1