New to Java

Hello,

I am trying to convert a Long value to a String in my application, but each time, the leading zeroes are eliminated during the process. What is the easiest way to do this while keeping any leading zeroes if they exist?

Also, there may or may not be a leading zero and I have no guarantee on the minimum value of the number. I know it can never be greater than six digits, but that is all I will know at the time of conversion.