// Fig. 4.11: Analysis.java
// Analysis of examination results.
import javax.swing.JOptionPane;

public class Analysis {

   public static void main( String args[] ) 
   {
      // initializing variables in declarations
      int passes = 0;          // number of passes
      int failures = 0;        // number of failures
      int studentCounter = 1;  // student counter
      int result;              // one exam result

      String input;            // user-entered value
      String output;           // output string

      // process 10 students using counter-controlled loop
      while ( studentCounter <= 10 ) {

         // prompt user for input and obtain value from user
         input = JOptionPane.showInputDialog(
            "Enter result (1 = pass, 2 = fail)" );

         // convert result to int
         result = Integer.parseInt( input );

         // if result 1, increment passes; if...else nested in while
         if ( result == 1 )
            passes = passes + 1;

         else // if result not 1, increment failures
            failures = failures + 1;

         // increment studentCounter so loop eventually terminates
         studentCounter = studentCounter + 1;  

      } // end while

      // termination phase; prepare and display results
      output = "Passed: " + passes + "\nFailed: " + failures;

      // determine whether more than 8 students passed
      if ( passes > 8 )
         output = output + "\nRaise Tuition";

      JOptionPane.showMessageDialog( null, output, 
         "Analysis of Examination Results", 
         JOptionPane.INFORMATION_MESSAGE );
      
      System.exit( 0 );  // terminate application

   } // end main

} // end class Analysis

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