/* simple statement example  ex6InClass.c 
By Dr. Xu
This program is for explaining the building blocks of C
*/

# include <stdio.h>    //For accessing the standard library functions
# include <math.h>

int main() {
    /*  literals: 5, 6, 3, 3.14, "James", '!'
        Variables: a, b, c, name, punc
        Constant: PI
        Expressions: a + b * 3, a + 6
        function: printf()
        datatype: int, char, float
    */
        
        //variable declaration ;
           // variable assignment 
  int a, b;       // variable assignment
         //variable declaration and initialization
  a = 5;
  b = a + 5;
  float c = 1.5;

  const float PI = 3.1415926;

  c = PI * pow(b, 2.0);

    
  printf("a = %d\nb = %d\nc = %.3f\nPI = %.3f\n", a, b, c, PI);

  char stName[] = "James";
  char punc = '!';

  printf("Good Bye, %s%c\n", stName, punc);
    
    //printf("Good bye, %s %c \n", name, punc);
    return 0;
}