// Fig. 7.8: StudentPoll.java
// Poll analysis program.

public class StudentPoll 
{
   public static void main( String args[] )
   {
      // array of survey responses
      int responses[] = { 1, 2, 6, 4, 8, 5, 9, 7, 8, 10, 1, 6, 3, 8, 6, 
         10, 3, 8, 2, 7, 6, 5, 7, 6, 8, 6, 7, 5, 6, 6, 5, 6, 7, 5, 6, 
         4, 8, 6, 8, 10 };
      int frequency[] = new int[ 11 ]; // array of frequency counters

      // for each answer, select responses element and use that value 
      // as frequency index to determine element to increment
      for ( int answer = 0; answer < responses.length; answer++ )
         ++frequency[ responses[ answer ] ];

      System.out.printf( "%s%10s\n", "Rating", "Frequency" );
   
      // output each array element's value
      for ( int rating = 1; rating < frequency.length; rating++ )
         System.out.printf( "%6d%10d\n", rating, frequency[ rating ] );
   } // end main
} // end class StudentPoll


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