packagedatatest.java

I holp somebody will need it.

// Fig. 8.20: PackageDataTest.java
// Package-access members of a class are accessible by other classes 
// in the same package.

public class PackageDataTest 
{
   public static void main( String args[] )
   {
      PackageData packageData = new PackageData();

      // output String representation of packageData 
      System.out.printf( "After instantiation:\n%s\n", packageData );

      // change package access data in packageData object
      packageData.number = 77;     
      packageData.string = "Goodbye";

      // output String representation of packageData
      System.out.printf( "\nAfter changing values:\n%s\n", packageData );
   } // end main
} // end class PackageDataTest

// class with package access instance variables
class PackageData 
{
   int number; // package-access instance variable
   String string; // package-access instance variable

   // constructor
   public PackageData() 
   { 
      number = 0; 
      string = "Hello";
   } // end PackageData constructor

   // return PackageData object String representation
   public String toString() 
   {
      return String.format( "number: %d; string: %s", number, string );
   } // end method toString
} // end class PackageData


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