“IllegalFormatConversionException: d != java.lang.String” when padding number with 0s?

Question

I had a perfectly working code yesterday, in the exact form of:

int lastRecord = 1;
String key = String.format(\"%08d\", Integer.toString(lastRecord));
         


        

Answer 1

You don't need the Integer.toString():

 newPK = String.format("%08d", lastRecord);

String.format() will do the conversion and the padding.