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Developer
nikita18
Posts: 144
Registered: ‎08-18-2012
My Device: Blackberry Curve 8520
Accepted Solution

How to sort double array in blackberry?

I need to sort a double array containg frequencies. I java we can do this by "Arrays.sort()" method. But Blackberry does not support double array sorting with this method. Anyone has any idea how to do it? Thanks.

Developer
simon_hain
Posts: 16,282
Registered: ‎07-29-2008
My Device: Z10 LE, Z30, Passport

Re: How to sort double array in blackberry?

sort every sub-array and then sort the whole thing by using the first element of each
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@SimonHain on twitter
Developer
nikita18
Posts: 144
Registered: ‎08-18-2012
My Device: Blackberry Curve 8520

Re: How to sort double array in blackberry?

Thanks for your reply Simon. My array is a single dimentional array. I want to do something like this: 

 public double getHarmonicProbability(double[] frequencies)
  {
    int harmonicCount = 0;
    int count = 0;
    Arrays.sort(frequencies);
//other code
}

 But Arrays.sort() does not work here with double[]. Please tell me how. 

Developer
simon_hain
Posts: 16,282
Registered: ‎07-29-2008
My Device: Z10 LE, Z30, Passport

Re: How to sort double array in blackberry?

implementing your own sort algorithm should be covered by every first semester programming course, i am sure you can find plenty of them online.
If that sounds too bothersome you could use objects instead of double[] and implement your own Comparator.
----------------------------------------------------------
feel free to press the like button on the right side to thank the user that helped you.
please mark posts as solved if you found a solution.
@SimonHain on twitter
Developer
nikita18
Posts: 144
Registered: ‎08-18-2012
My Device: Blackberry Curve 8520

Re: How to sort double array in blackberry?

Thanks, I can implement that. But I thought if there was any API in blackberry I could use for this purpose. But I found many easy methods which can be found in java are missing  in the Blackberry API. Thanks for you help Simon.