//  TestingClassString.java  (c) 2005 Kari Laitinen

//  http://www.naturalprogramming.com

//  2005-04-13  File created.
//  2005-04-17  Last modification.

import java.util.* ;

class TestingClassString
{
   public static void main( String[] not_in_use )
   {
      Scanner  keyboard  =  new Scanner( System.in ) ;

      String  string_object  =  "ABC" ;
      String  another_string =  "abc" ;

      System.out.print( "\n comparison result:  "
                     +  string_object.compareToIgnoreCase( another_string ) ) ;

      String  resulting_string  =  string_object.concat( another_string ) ;

      System.out.print( "\n " + resulting_string ) ;

      resulting_string  =  string_object + another_string  ;

      System.out.print( "\n " + resulting_string ) ;

      string_object   =  "ABCDEFG" ;
      another_string  =  "CD" ;

      if ( string_object.contains(  another_string  ) )
      {
         System.out.print( "\n " +  string_object  +  " contains "
                        +  another_string  ) ;
      }

      if ( string_object.contains(  new StringBuilder( another_string )  ) )
      {
         System.out.print( "\n " +  string_object  +  " contains "
                        +  another_string  ) ;
      }


      if ( string_object.indexOf(  another_string  )  !=  -1 )
      {
         System.out.print( "\n " +  string_object  +  " contains "
                        +  another_string  ) ;
      }


      char[]  some_character_array  =  { 'H', 'e', 'l', 'l', 'o', '!' } ;

      //String  string_of_characters  =  String.copyValueOf(
      //                                               some_character_array ) ;

      String  string_of_characters  =  new String( some_character_array ) ;


      System.out.print( "\n "  +  string_of_characters ) ;

      another_string  =  "FG" ;

      if ( string_object.endsWith(  another_string  )  )
      {
         System.out.print( "\n " +  string_object  +  " ends with "
                        +  another_string  ) ;
      }

      string_object  =  "ABCDE" ;
      another_string  =  "ABCDE" ;

      if ( string_object.contentEquals( new StringBuilder( another_string )  ) )
      {
         System.out.print( "\n " +  string_object  +  " content equals "
                        +  another_string  ) ;
      }

      if ( string_object.contentEquals( another_string   ) )
      {
         System.out.print( "\n " +  string_object  +  " content equals "
                        +  another_string  ) ;
      }


      int given_integer  =  1025 ;

      String  text_to_print  =  String.format(
            "\n%06d is %06X hexadecimal", given_integer, given_integer ) ;

      System.out.print( text_to_print ) ;

      string_object  =  "ABCDEFGHIJ" ;
      char[] array_of_characters  =  new char[ 50 ] ;

      string_object.getChars( 3, 6, array_of_characters, 0 ) ;

      System.out.print( "\n "  +  new  String( array_of_characters, 0, 4 ) ) ;


      byte[] array_of_bytes  =  string_object.getBytes() ;

      System.out.print( "\n "  +  new  String( array_of_bytes ) ) ;

                       //012345678901234567890123456
      string_object  =  "AAAAADDAAADDAAADDAAADDAAADD" ;

      System.out.print( "\n last index : "  
                     +  string_object.lastIndexOf( "DD", 14 ) ) ;


      //  In regular expressions:
      //   +  means 1 or more
      //   *  zero or more

      String some_string  =  "BAGDAD" ;
      String regular_expression  =  "[A-G]+" ;

      System.out.print( "\n "  +  some_string  
                     +  " matches "  +  regular_expression
                     +  " is "
                     +  some_string.matches( regular_expression ) ) ;

      System.out.print( "\n "  +  some_string.matches( "[A-G]+" ) ) ;


      string_object  =  "\n     some text \t\n\n  " ;

      System.out.print( "\n Before trim():"  +  string_object
                     +  "\n After trim(): "  +  string_object.trim() ) ;


      int some_integer  =  13994 ;

      System.out.print( "\n The value is "  +  String.valueOf( some_integer ) );
      System.out.print( "\n The value is "  +  some_integer ) ;



      System.out.print( "\n\n" ) ;


   }
}