// Fig. 7.4: InitArray.java
// Initialize array with the even integers from 2 to 20.
import javax.swing.*;

public class InitArray3 {

  public static void main( String args[] )
  {
    final int ARRAY_LENGTH = 10;    // constant
    int array[];                    // reference to int array

    array = new int[ ARRAY_LENGTH ];  // create array

    // calculate value for each array element
    for ( int counter = 0; counter < array.length; counter++ )
      array[ counter ] = 2 + 2 * counter;

    String output = "Index\tValue\n";

    for ( int counter = 0; counter < array.length; counter++ )
      output += counter + "\t" + array[ counter ] + "\n";

    JTextArea outputArea = new JTextArea();
    outputArea.setText( output );

    JOptionPane.showMessageDialog( null, outputArea,
                                   "Initializing to Even Numbers from 2 to 20",
                                   JOptionPane.INFORMATION_MESSAGE );

    System.exit( 0 );

  } // end main

} // end class InitArray3