question: public String sprintf ( ) { final Iterator < ConversionSpecification > e = vFmt . iterator ( ) ; ConversionSpecification cs ; char c ; final StringBuilder sb = new StringBuilder ( ) ; while ( e . hasNext ( ) ) { cs = e . next ( ) ; c = cs . getConversionCharacter ( ) ; if ( c == '\0' ) { sb . append ( cs . getLiteral ( ) ) ; } else if ( c == '%' ) { sb . append ( '%' ) ; } } return sb . toString ( ) ; }
target:  Format nothing.  Just use the control string.