// OopHello.C
// (c) Burt Rosenberg 1996

// This program demonstrates a basic approach of Object
// Oriented Programming.

// Also introduces strings as array of char.

#include<iostream.h>
#define MESSAGESIZE 100

class Greetings 
{
   const int size = MESSAGESIZE ;
   char message[MESSAGESIZE] ;
public:
   Greetings( char m[] ) ;
   void print(void) ;
   void set(char m[]) ;
} ;

Greetings::Greetings( char m[] ) 
{
   int i = 0 ;
   while ( m[i] !='\0' ) 
   {
      message[i] = m[i] ;
      i = i + 1 ;
      if ( i == (size-1) ) break ;
   }
   // place end of string marker
   message[i] = '\0' ;
}

void Greetings::print ( void )
{
   int i = 0 ;
   while ( message[i] != '\0' )
   {
      cout << message[i] ;
      i = i + 1 ;
   }
   cout << endl ;
}

void Greetings::set( char m[] ) 
{
   int i = 0 ;
   while ( m[i] !='\0' )
   {
      message[i] = m[i] ;
      i = i + 1 ;
      if ( i == (size-1) ) break ;
   }
   // place end of string marker
   message[i] = '\0' ;
}

void main() 
{
   Greetings hello( "Hello World" )  ;

   hello.print() ;
   hello.set( "Goodbye World" ) ;
   hello.print() ;

}