// Fig. 8.9: PackageDataTest.java // Classes in the same package (i.e., the same directory) // can use package access data of other classes in the // same package. import javax.swing.JOptionPane; public class PackageDataTest { public static void main( String args[] ) { PackageData d = new PackageData(); String output; output = "After instantiation:\n" + d.toString(); d.x = 77; // changing package access data d.s = "Good bye"; // changing package access data output += "\nAfter changing values:\n" + d.toString(); JOptionPane.showMessageDialog( null, output, "Demonstrating Package Access", JOptionPane.INFORMATION_MESSAGE ); System.exit( 0 ); } } class PackageData { int x; // package access instance variable String s; // package access instance variable // constructor public PackageData() { x = 0; s = "Hello"; } public String toString() { return "x: " + x + " s: " + s; } } /************************************************************************** * (C) Copyright 1999 by Deitel & Associates, Inc. and Prentice Hall. * * All Rights Reserved. * * * * DISCLAIMER: The authors and publisher of this book have used their * * best efforts in preparing the book. These efforts include the * * development, research, and testing of the theories and programs * * to determine their effectiveness. The authors and publisher make * * no warranty of any kind, expressed or implied, with regard to these * * programs or to the documentation contained in these books. The authors * * and publisher shall not be liable in any event for incidental or * * consequential damages in connection with, or arising out of, the * * furnishing, performance, or use of these programs. * *************************************************************************/