Question

In C Coding, print either "Fruit", "Drink", or "Unknown" (followed by a newline) depending on the value of userItem. Print "Unknown" (followed by a newline) if the value of userItem does not match any of the defined options. For example, if userItem is GR_APPLES, output should be:
Fruit
Sorry in advance, I'm new and my professor has been a bit hard to understand so I'd like a walkthrough on this problem.

Answer 1

The code below uses if-else structure to print the output depending on the value of the userItem.

If the specified condition in the if structure is true, the block in the structure gets executed.

Comments are used to explain the each line of the code.

//main.c

#include <stdio.h>

int main()

{  

   //defining the enum and userItem

   enum GroceryItem {GR_APPLES, GR_BANANAS, GR_JUICE, GR_WATER};

   enum GroceryItem userItem;

   //initializing the userItem

   userItem = GR_APPLES;

   

   //checking the userItem

   //If it is GR_APPLES or GR_BANANAS, print "Fruit"

   //If it is GR_JUICE or GR_WATER, print "Drink"

   //Otherwise, print "Unknown"

   if(userItem == GR_APPLES || userItem == GR_BANANAS){

       printf("%s\n", "Fruit");

   }

   else if(userItem == GR_JUICE || userItem == GR_WATER){

       printf("%s\n", "Drink");

   }

   else{

       printf("%s\n", "Unknown");

   }

   

   return 0;

}

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