• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Double and format?

 
Ranch Hand
Posts: 80
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
hi, does anyone know of a function or method that will only let you ouput a set amount of numbers after the decimal...
I kind of remember something about format, or mask or something like that...but after searching for it i came up with nothing...
I have a number : 99.9012345678
and I want it to come out as 99.90, can anyone suggest something...thanks.
 
author
Posts: 3252
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
((int)(number*100))/100.0
- Peter
 
Sheriff
Posts: 7023
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
...and you might want to take a look at DecimalFormat.
 
Drake Silver
Ranch Hand
Posts: 80
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
thanks alot guys, i'll see where I get from here.
thanks again
 
Ranch Hand
Posts: 2937
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator


I have a number : 99.9012345678
and I want it to come out as 99.90, can anyone suggest something...


Here is what you are looking for:

Eugene.
 
buckaroo
Posts: 401
Postgres Database
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
The problem is getting the zero to print out as well. Something to do with the concept of "nearest neighbor".
doco
 
Wanderer
Posts: 18671
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
That can be handled by adding the line

or use a DecimalFormat (subclass of NumberFormat) instead:
 
Stinging nettles are edible. But I really want to see you try to eat this tiny ad:
a bit of art, as a gift, the permaculture playing cards
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic