This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
There is no "trick". The leading zero is not significant, and is not part of the textual representation of the int 123. If it is necessary to display a leading zero, you can do so with a NumberFormat object, or using String.format(). [ February 10, 2008: Message edited by: Garrett Rowe ]
Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them. - Laurence J. Peter