Substring double values?

[JayP]

I'm trying to substring a double value but I tried .substring but i believe that's only for strings.

And I'd also like to round the numbers up a tiny bit.

for example

4.079691454585337

rounded up to 4.08 without showing the rest of the numbers.

Could anyone put me in the right direction for this. Thanks a bunch!

[Fubarable]

You can do this any number of ways, but first of all, you are right, subString is for Strings only. Now as to your problem, it can be solved with a DecimalFormat object or the static String method String.format(...).

[Norm]

I tried .substring but i believe that's only for strings.

You can see what methods a class has by reading the API doc for that class.

If you are printing the numbers and want to control what is printed, see the printf() method.

[JayP]

I'm not sure what I'm doing wrong. I've checked the printf class and followed a tutorial but I get a problem with the script.

Here's my code:

System.out.printf("%.1f \t %f", year, price);

Is there a reason why there comes with an error with this? I can't see why, I've followed the tutorial and it seems correct.

Any pointers would be greatly appreciated!

[Norm]

Is there a reason why there comes with an error with this

You forgot to post the full text of the error message.

[Junky]

Crystal ball says either year or price is not a floating point number. Which leads me to ask why is year a floating point number? This year is 2011 not 2011.56.