• 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
  • Paul Clapham
  • Ron McLeod
  • Tim Cooke
  • Junilu Lacar
Sheriffs:
  • Rob Spoor
  • Devaka Cooray
  • Jeanne Boyarsky
Saloon Keepers:
  • Jesse Silverman
  • Stephan van Hulst
  • Tim Moores
  • Carey Brown
  • Tim Holloway
Bartenders:
  • Jj Roberts
  • Al Hobbs
  • Piet Souris

how the key-value pair is sorted in ascending and descending order.

 
Greenhorn
Posts: 2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi guys,
I WAS to store my key-value pairs in a map. USING ONLY ONE BUTTON FIRST TIME I CLICK THE BUTTON MEAN THE RESULT IS IN ASCENDING ORDER AGAIN SECOND TIME I CLICK THE SAME BUTTON THE RESULE IS IN DESCENDING ORDER.

here ascending order we are use SortedMap interface class TreeMap. then descending order which class or method we use.

post answer.

thank you.
 
Ranch Hand
Posts: 333
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I would check the TreeMap API

G
 
Sheriff
Posts: 7023
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Welcome to JavaRanch, krishnan!

The API documentation of the TreeMap class is available at http://java.sun.com/j2se/1.5.0/docs/api/java/util/TreeMap.html.

After reviewing it, as Gavin recommended, do you have any ideas for implementing the descending order functionality? If you're still totally stuck, I'm sure some friendly JavaRanchers would be glad to help nudge you further towards a solution.
 
reply
    Bookmark Topic Watch Topic
  • New Topic