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Sorting Collection

 
Ranch Hand
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Hi All,

Could you suggest some better solution to sort the collection ?

The collection containts the objects (code below) having only one property which can have any of "Number", "Text/String", "Alpha numeric".




I tried the following comparator, it is not effective ..!



Method to test





Please suggest some better idea..


Thanks,
Arun.
 
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Why not simply the following:
 
Arun Prasath
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Hi Stephan,

I would be adding null also.. So your code will result in null pointer expression.

i am expecting the sorting result something like this,

null
null
-123
-20
-4
0
1
2
12
20
1abc
five
four
three


Please provide some better idea..
 
Rancher
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I would be adding null also..



Ok, then you need to check for null value first before invoking the compartTo(...) method.
 
Stephan van Hulst
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Ohh, I see. Take a look at this:
Compare with your original code and tell us what went wrong.
 
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