#include <stdio.h>

int main()
{
 int x;
 int a, b, c, d;
 char letter;
 float the_float;
 const float pi = 3.14;

 printf( "I am alive!  Beware.\n" );

 int this_is_a_number;
 printf( "Please enter a number: " );
 scanf( "%d", &this_is_a_number );   //%d = integer
  printf( "%d is an integer\n", this_is_a_number );

  if (0 == 0)
   {
      printf("You passed");
   }
   else
   {
      printf("You failed");
   }

   char fruit;
   printf("Which one is your favourite fruit:\n");
   printf("a) Apples\n");
   printf("b) Bananas\n");
   printf("c) Cherries\n");
   scanf("%c",&fruit);
   switch (fruit)
   {
      case 'a':
         printf("You like apples\n");
         break;
      case 'b':
         printf("You like bananas\n");
         break;
      case 'c':
         printf("You like cherries\n");
         break;
      default:
         printf("You entered an invalid choice\n");
   }

   getchar();

 return 0;
}

/*
Name	Type                Range
int	    Numeric - Integer	-32,768 to 32,767
short	Numeric - Integer	-32,768 to 32,767
long	Numeric - Integer	-2,147,483,648 to 2,147,483,647
float	Numeric - Real	    1.2 X 10^-38 to 3.4 X 10^38
double	Numeric - Real	    2.2 X 10^-308 to 1.8 X 10^308
char	Character	        All ASCII characters
*/

/*
scanf("%d",&a);
printf("The answer is %d",a);
%d or %i	int
%c	        char
%f	        float
%lf	        double
%s	        string    */

/*
==	Equal
!=	 Not equal
>	Greater than
>=	Greater than or equal
<	Less than
<=	Less than or equal
&&	And
||	Or
!	Not
*/

/*
do
   {
      i++;
      printf("%d\n",i);
   }
   while (i <= times);
*/

/*
  int i,j;
   int *p;
   i = 5;
   p = &i;
   j = *p; //j = i
   *p = 7; //i = 7



int a[3][3],i,j;
for (i = 0;i < 3;i++)
   for (j = 0;j < 3;j++)
      a[i][j] = 0;



char ca[10];

You must set the value of each individual element of the array to the character you want and you must make the last character a 0. Remember to use %s when printing the string.

char ca[10];
ca[0] = 'H';
ca[1] = 'e';
ca[2] = 'l';
ca[3] = 'l';
ca[4] = 'o';
ca[5] = 0;
printf("%s",ca);

String pointers are declared as a pointer to a char.

char *sp;

When you assign a value to the string pointer it will automatically put the 0 in for you unlike character arrays.

char *sp;
sp = "Hello";
printf("%s",sp);

You can read a string into only a character array using scanf and not a string pointer. If you want to read into a string pointer then you must make it point to a character array.

char ca[10],*sp;
scanf("%s",ca);
sp = ca;
scanf("%s",sp);




Functions:
int mult ( int x, int y );

int main()
{
  return 0;
}

int mult (int x, int y)
{
  return x * y;
}
   */