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Getting 01 output versus 1

Mark Adams

Joined: Nov 23, 2007
Posts: 16
Can anyone please tell me how I can get a double digit output of 01 rather than just 1.

I have an output that looks like this: 1,22,2,45,6
and would like it to look like this: 01,22,02,45,06

I know it someting very silly and can't wait to see the response.

Thank you,

Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14589

There are several ways to do this.

Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 8 API documentation
Campbell Ritchie

Joined: Oct 13, 2005
Posts: 40981
. . . and what about

System.out.printf("%02d", number);

Even shorter!
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subject: Getting 01 output versus 1