wood burning stoves 2.0*
The moose likes Java in General and the fly likes Sorting Asciibetically Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Java in General
Bookmark "Sorting Asciibetically" Watch "Sorting Asciibetically" New topic
Author

Sorting Asciibetically

Lexy Yang
Greenhorn

Joined: May 07, 2012
Posts: 2
How do you sort strings asciibetically?
Pondurai Singh
Ranch Hand

Joined: Jun 27, 2011
Posts: 35
Example program Sort an array of ASCII strings into ascending order
Reference: oreilly.com/9781565923713/


Software Developer, Oracle Java Certification Training Labs at EPractize Labs.
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19790
    
  20

No offense, but I would never use anything from that code:
1) That Comparer interface is exactly the same as the old non-generic java.util.Comparator interface.
2) That Comparable interface is exactly the same as the old non-generic java.lang.Comparable interface.
3) That sorting functionality already exists in java.util.Arrays. To sort in reverse order, you can use one of the two reverseOrder methods in java.util.Collections.


SCJP 1.4 - SCJP 6 - SCWCD 5 - OCEEJBD 6
How To Ask Questions How To Answer Questions
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 40052
    
  28
Rob Spoor wrote: . . . To sort in reverse order, you can use one of the two reverseOrder methods in java.util.Collections.
Or you write a ComparatorNow that is really complicated, isn’t it
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19790
    
  20

That compare method is 100% identical to the implementation of reverseOrder(). That's also a singleton which makes it slightly more efficient - no matter how many times you call the method, only one object is created.
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 40052
    
  28
I hadn’t noticed that reverseOrder creates a Comparator rather than reversing the list
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Sorting Asciibetically