John Stile
chapter2 
Selftest1.txt

1.  What do each of the following lines of code accomplish?
  a.) printf("Last Name \t First Name \n");  // prints "Last Name <tab> First Name <newline>
  b.) printf("The sum of %d and %d is %d.\n",45,27,45+27); // prints "The sum of 45 and 27 is 72.<newline>"
  c.) scanf("%f", &price); // stores a number with a decimal at the memory address pointed to by variable price.
  d.) int aaaa; // declares a variable of type int;
  e.) aaaa=aaaa + 20 //errors.  No semicolon. but would have incremented value of aaaa by 20.
  f.) scanf("%s", item); //stores string in an array item.  item in this context is the first element of array &item[0] 

2. What errors are in the following program? Correct them and make it work.
*/ Selftest 1-2.c */                                   /* Selftest 1-2.c */				     	
include <stdio.h>                                      #include <stdio.h>				     	
int main(void)                                         int main(void)					     	
                                                       {						     	
  int xx,yy                                              int xx,yy;					     	
  xx=3.8;                                                xx=3.8;					     	
  yy=5.2;                                                yy=5.2;					     	
  printf("The sum of d and d is %d\n", xx,yy,xx*yy);     printf("The sum of %d and %d is %d\n", xx,yy,xx+yy);	
  return0;                                               return 0;					     	
}                                                      }