Use Of Functions Include Iostream Using Namespace Std

Use Of Functionsinclude Iostreamusing Namespace Std

Use of functions #include using namespace std; void displayMenu(string userName) { cout void viewAddress(string name) { cout void viewEmail(string name) { cout int vacationDays(string name) { return 12; } int main(void) { char selection = ' '; string name = ""; int vacationTaken=0; //Ask user for her/his name cout "; getline(cin, name); //display user name cout >selection; switch(selection) { case '1': cout

Paper For Above instruction

The provided program demonstrates foundational concepts of procedural programming in C++, including the use of functions, input/output operations, and control structures. Developing a menu-driven application, this code allows users to interactively retrieve personal information, such as address, email, and vacation days, based on their selections. This program exemplifies modular programming by encapsulating specific functionalities within dedicated functions, thus promoting code reusability and clarity.

The program begins by prompting the user to enter their name, which enhances the user experience by personalizing subsequent interactions. After capturing the user's name via the getline function, the program employs a do-while loop to establish a persistent menu until the user opts to exit by entering 'X' or 'x'. This loop ensures continuous engagement, allowing multiple operations within a single execution cycle.

The core of the application lies in the displayMenu function, which dynamically presents the menu options tailored with the user's name. This function's design emphasizes separation of concerns, isolating user interface elements from business logic. The options include viewing the user's address, email, and vacation days, each handled by dedicated functions: viewAddress, viewEmail, and vacationDays.

Each of these functions encapsulates specific data retrieval logic. The viewAddress outputs a static address associated with the user, illustrating simple data display. The viewEmail combines the user's name with a domain to generate an email address, demonstrating string concatenation. The vacationDays function returns a fixed number of vacation days, exemplifying a simple function returning a value.

The control flow within the main function employs a switch statement to handle user selections efficiently. When users select options 1, 2, or 3, the program calls the respective functions and displays results. For exit commands 'X' or 'x', it gracefully terminates after displaying a thank-you message. Any invalid inputs prompt an error message, and the menu redisplays for further interaction.

This design illustrates essential programming principles including modularity, user interaction, and control flow. It also highlights areas for potential improvements, such as input validation, dynamic data storage, error handling, and expanding functionality to handle multiple users or persistent data.

Overall, this example serves as a practical introduction to fundamental C++ programming concepts, suitable for beginners seeking to understand function usage, control structures, and user interaction in console applications.

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