# include <stdio.h>

int main ( )
{
  char c;
//
//  Use a BACKSLASH to indicate that the following character is not used
//  in the regular way.  \' means this is just a single quote, not a 
//  character delimiter.
//
  c = '\'';
  printf ( " C(char) = %c, C(int) = %i\n", c, c );
//
//  Now let's print the string again, with double quotes around the
//  single quote.  But C will think our double quotes mean "terminate the string"
//  so we use a backslash combination there too!  \" means this is just
//  a double quote character.
//
  c = '\'';
  printf ( " C(char) = \"%c\", C(int) = %i\n", c, c );
//
//  How would you print a backslash character?
//
  c = '\\';
  printf ( " C(char) = \"%c\", C(int) = %i\n", c, c );
//
//  There is a character that makes a new line.  
//  It's not on the keyboard.  How do we use it, and how do we print it?
//
  c = '\n';
  printf ( " C(char) = \"%c\", C(int) = %i\n", c, c );
//
//  The NULL character doesn't do much for us, but C uses it a lot
//  to mark the end of a string.  Here is how it can be set and printed.
//
  c = '\0';
  printf ( " C(char) = \"%c\", C(int) = %i\n", c, c );

  return 0;
}