//  StringEquality.java  (c) 2004 Kari Laitinen

//  http://www.naturalprogramming.com

//  2004-09-19  File created.
//  2004-10-09  Last modification.

class StringEquality
{
   public static void main( String[] not_in_use )
   {
      String  first_string   =  "aaaaaa" ;
      String  second_string  =  "bbbbbb" ;

      System.out.print( "\n  " + first_string + "  " + second_string ) ;

      if ( first_string.equals( second_string ) )
      {
         System.out.print( "\n     Equal String objects." ) ;
      }
      else
      {
         System.out.print( "\n     Not equal String objects." ) ;
      }

      if ( first_string  ==  second_string )
      {
         System.out.print( "\n     Referencing the same object." ) ;
      }
      else
      {
         System.out.print( "\n     Different objects referenced." ) ;
      }


      second_string  =  first_string ;

      System.out.print( "\n  " + first_string + "  " + second_string ) ;

      if ( first_string.equals( second_string ) )
      {
         System.out.print( "\n     Equal String objects." ) ;
      }
      else
      {
         System.out.print( "\n     Not equal String objects." ) ;
      }

      if ( first_string  ==  second_string )
      {
         System.out.print( "\n     Referencing the same object." ) ;
      }
      else
      {
         System.out.print( "\n     Different objects referenced." ) ;
      }

      second_string  =  new  String( first_string ) ;

      System.out.print( "\n  " + first_string + "  " + second_string ) ;

      if ( first_string.equals( second_string ) )
      {
         System.out.print( "\n     Equal String objects." ) ;
      }
      else
      {
         System.out.print( "\n     Not equal String objects." ) ;
      }

      if ( first_string  ==  second_string )
      {
         System.out.print( "\n     Referencing the same object." ) ;
      }
      else
      {
         System.out.print( "\n     Different objects referenced." ) ;
      }
   }
}