Update Exercise 5 - Farm.txt

Part 1/4. Control structures/Exercises/Exercise 5 - Farm.txt

-Do the following changes to your farm program from Chapter 3 "Exercise 2 - Farm":
+Do the following changes to your farm program from Chapter 3 "Exercise 1 - Farm":
  
-Use a switch statement to create a user menu. 
-The user can type in a number (0, 1 or 2) that calls one of the following functions:
+Use a switch statement to create a user menu that calls the following 3 functions:
 
--	1: Data_query
--	2: Calculate_revenue
--	0: Exit program
- 
-The menu should reappear until the user enters the number 0 to exit the program (do-while loop).
-A corresponding message should appear if a wrong input has been made.
+- 1: Create animal ()
+- 2: Display animal ()
+- 3: Sell animal (animal number)
+- 0: End program
+
+The menu should reappear until the user enters the number for "End program" (do-while loop).
+
+When creating, the following data should be saved:
+- Animal type
+- Animal number
+- Weight
+
+When displaying, the following data should be shown:
+- Animal type
+- Animal number
+- Weight
+- Whether the animal is still in stock
+
+When selling, it should be checked whether the animal is still in stock and whether the stored animal number matches the entered animal number.
+The following should work:
+- Entering the daily price
+- Revenue increases (weight * daily price)
+- Output of the total revenue
+- Animal is then no longer in stock
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