// Exercise 7.16: WhatDoesThisDo.java

// Java core packages
import java.awt.*;

// Java extension packages
import javax.swing.*;

public class WhatDoesThisDo extends JApplet {
   int result;

   public void init()
   {
      int array[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
   
      result = whatIsThis( array, array.length );

      Container container = getContentPane();
      JTextArea output = new JTextArea();
      output.setText( "Result is: " + result );
      container.add( output );
   }

   public int whatIsThis( int array2[], int size )
   {
      if ( size == 1 )
         return array2[ 0 ];
      else
         return array2[ size - 1 ] + 
            whatIsThis( array2, size - 1 );
   }
}

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