How can I format a number with leading zeros?

I need to convert an int to occupy exactly 3 positions in a StringBuffer... I need the space in the StringBuffer to be filled with leading zeros where appropriate. Can anyone show me how to do this correctly please ?
At the moment I am using a pretty dumb workaround to fill the target with "000" first and then parse the int into either 1 2 or 3 positions depending on its value ... it works, but there must be a more correct way to do this ...
Thanks in advance ...

Have you had a look at the class java.text.DecimalFormat? It does exactly what you want... example:
StringBuffer sb = new StringBuffer();
DecimalFormat format = new DecimalFormat("000");
format.format(2, sb, new FieldPosition(0));
System.out.println(sb);
prints out the string 002.

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Format a number with leading ones

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String.format("%18d", 160)I'd appreciate your help.
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933581 wrote:
>
What are you expecting?
>
I expected that "%18d" would pad with 1s.You assumed
mmm I just thought that while "%08d" pads with 0s, the same would happen if I used "%18d" to pad with 1s.But if you would have looked at the javadoc of that method you would have very quickly known this was not the case and you wouldn't even had to create this thread. Why operate on guesswork when it is so easy to know reality? :(

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Ted,
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Here's a screen shot...
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Please Mark This As Answer if it solved your issue
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Visakh
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Hi All,
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I am executing the following SQL statement
select state,count(id) from <table_name> where composite_dn= <composite_dn_name> group by state;
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Edited by: Roshni Shankar on Oct 27, 2012 12:38 AM

Hi Roshni,
I guess this CASE clause can be simulated by a DECODE and also it is very easy to use.
Refer -- http://www.techonthenet.com/oracle/functions/decode.php
select decode(t1.state,t2.state_id,t2.state_name), t1.count_id
from <table_2> t2, (select state,count(id) count_id
from <table_name>
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where t1.state = t2.state_id;HTH
Ranit B.
Edited by: ranit B on Oct 27, 2012 2:02 PM
-- link added
Edited by: ranit B on Oct 27, 2012 2:19 PM
-- sample code added

How can I format a number with leading zeros?

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