How to Find Duplicate Values in Arrays?

I am working on SQLlite and I have written a query which Returns me Two Array.<br/>
 ItemsArray and CustomersIDArray as
 <pre>
 ItemsArray
 Element at Index 0 = Off White,
 Element at Index 1 = Fan,
 Element at Index 2 = Off White,
 Element at Index 3 = Delux,
 Element at Index 4 = Fan
 CustomerIDArray 
 Element at Index 0 = 1,
 Element at Index 1 = 2,
 Element at Index 2 = 2,
 Element at Index 3 = 3,
 Element at Index 4 = 4
 </pre>
 I want Result like that off White = 2 (count) , Fan = 2 (count) and Delux = 1; 
 and the Resultant Array,
 <pre>
 Result Array 
 Element at Index 0 = Off White,
 Element at Index 1 = Fan,
 Element at Index 3 = Delux <br/>
 </pre>
 

Actually I want the count of repetition in first array but the value must not same for CustomerArray.
Please Help me through Logic or Code

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