In convertible Types: Cannot cast 'java.lang.Object[]' to 'java.lang.Double'

I am trying to retrieve data from foursqaure API, however, when I try to retireve the places rating I am getting the error message which says In convertible Types: Cannot cast 'java.lang.Object[]' to 'java.lang.Double' . Please help.

I am getting the error message for this line below.

this.itemrating = (Double)temprating.toArray();

Please can you please and sort out the issue I am currently facing.

— modified on Apr 1, 2016, 10:11:30 PM