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Thread: Format Precision Exception? What's going on?

  1. #1
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    Default Format Precision Exception? What's going on?

    public class test {
        public static void main(String[] args) {
           double meter;
           double foot;
           double x = 1;
           double y = 20;
     
     
            System.out.println("Feet \t Meters \t | \t Meters \t Feet");
     
            while (x <= 10 && y <= 65){
                meter = footToMeter(x);
            foot = meterToFoot(y);
                System.out.printf("%10.1d \t %10.3d  | %10.1d \t %10.3d", x, meter, y, foot);
     
     
            x++;
            y += 5;
            }//end of while
     
        }//end of main method
     
        public static double footToMeter(double foot) {
     
            return 0.305 * foot;
        }//end of footToMeter
     
        public static double meterToFoot(double meter) {
     
           return 3.279 * meter;
        }//end of meterToFoot
     
     
     
    }

    it is something inside this part, but i can't figure out what is wrong:
    System.out.printf("%10.1d \t %10.3d  | %10.1d \t %10.3d", x, meter, y, foot);


  2. #2
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    Default Re: Format Precision Exception? What's going on?

    Use "%d" for ints and longs.
    Use "%SomethingElse" for floats and doubles.

    Formatter syntax


    Cheers!

    Z

  3. The Following User Says Thank You to Zaphod_b For This Useful Post:

    ColeTrain (October 28th, 2012)

  4. #3
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    Default Re: Format Precision Exception? What's going on?

    Thanks! Works perfect now. I figured d stood for double, good to know. I appreciate the fast and informative response!

  5. #4
    Super Moderator pbrockway2's Avatar
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    Default Re: Format Precision Exception? What's going on?

    d is for decimal because, in that case, we are dealing with formatting an int using its decimal (base 10) representation.

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