#include <stdio.h>
#include <stdlib.h>

int main() {

  //menu based on a single character
  char userChar;
  puts("select options [A] or [B]");
  userChar = getc(stdin);

  if(userChar == 'A'){
    puts("You selected option A!");
  } else if(userChar == 'B'){
    puts("You selected option B!");
  } else {
    puts("error, unknown input");
    printf("userChar Code = %d\n", userChar);
  }

  //fgets - "file get string"
  puts("type in some text or words:");
  char userText[100];
  fgets(userText, 100, stdin);
  printf("You typed in this: %s \n", userText);
  char firstEntry = userText[0];
  printf("the first character is %c \n", firstEntry);

  //taking user input as text, and converting to a floating point number
  // atof()  "string to float"
  puts("type in a number, this will multiply by 5:");
  char userText[100];
  fgets(userText, 100, stdin);
  double userValue = atof(userText);
  double result = userValue * 5;
  printf("here's your value muliplied by 5: %f \n", result);

}