Group
Functions in C#
Objective
1. Define a Task class to represent a task with properties like task name, description, and due date.
2. Create a function to display all tasks in the list.
3. Implement a function to add new tasks to the list.
4. Create a function to remove a task by its index.
5. Implement a simple text-based user interface that allows the user to choose different operations: add task, display tasks, remove task, or exit.
6. The program should be organized in such a way that each task operation (add, remove, display) is encapsulated within its respective function.
Write in C# an improved version of the "tasks database", splitting it into functions.
Example C# Exercise
Show C# Code
using System;
using System.Collections.Generic;
class Program
{
// Define the Task class
public class Task
{
public string Name { get; set; }
public string Description { get; set; }
public DateTime DueDate { get; set; }
// Constructor to initialize a new task
public Task(string name, string description, DateTime dueDate)
{
Name = name;
Description = description;
DueDate = dueDate;
}
}
// Create a list to store tasks
static List taskList = new List();
// Function to display all tasks in the list
public static void DisplayTasks()
{
if (taskList.Count == 0)
{
Console.WriteLine("No tasks available.");
return;
}
Console.WriteLine("Tasks List:");
foreach (var task in taskList)
{
Console.WriteLine($"Task: {task.Name}, Description: {task.Description}, Due Date: {task.DueDate.ToShortDateString()}");
}
}
// Function to add a new task to the list
public static void AddTask(string name, string description, DateTime dueDate)
{
taskList.Add(new Task(name, description, dueDate));
Console.WriteLine("Task added successfully.");
}
// Function to remove a task by its index
public static void RemoveTask(int index)
{
if (index >= 0 && index < taskList.Count)
{
taskList.RemoveAt(index);
Console.WriteLine("Task removed successfully.");
}
else
{
Console.WriteLine("Invalid index. Task not found.");
}
}
// Main method to display the menu and handle user input
public static void Main()
{
int choice;
do
{
// Display the menu
Console.WriteLine("\nTask Manager Menu:");
Console.WriteLine("1. Display Tasks");
Console.WriteLine("2. Add Task");
Console.WriteLine("3. Remove Task");
Console.WriteLine("4. Exit");
Console.Write("Enter your choice: ");
choice = int.Parse(Console.ReadLine());
switch (choice)
{
case 1:
DisplayTasks();
break;
case 2:
// Prompt user for task details
Console.Write("Enter task name: ");
string name = Console.ReadLine();
Console.Write("Enter task description: ");
string description = Console.ReadLine();
Console.Write("Enter task due date (MM/DD/YYYY): ");
DateTime dueDate = DateTime.Parse(Console.ReadLine());
// Add the task
AddTask(name, description, dueDate);
break;
case 3:
// Prompt user for task index to remove
Console.Write("Enter task index to remove: ");
int index = int.Parse(Console.ReadLine());
// Remove the task
RemoveTask(index);
break;
case 4:
Console.WriteLine("Exiting the program.");
break;
default:
Console.WriteLine("Invalid choice. Please try again.");
break;
}
} while (choice != 4);
}
}
Output
Task Manager Menu:
1. Display Tasks
2. Add Task
3. Remove Task
4. Exit
Enter your choice: 2
Enter task name: Finish homework
Enter task description: Complete the math assignment
Enter task due date (MM/DD/YYYY): 05/10/2025
Task added successfully.
Task Manager Menu:
1. Display Tasks
2. Add Task
3. Remove Task
4. Exit
Enter your choice: 1
Tasks List:
Task: Finish homework, Description: Complete the math assignment, Due Date: 05/10/2025
Task Manager Menu:
1. Display Tasks
2. Add Task
3. Remove Task
4. Exit
Enter your choice: 3
Enter task index to remove: 0
Task removed successfully.
Task Manager Menu:
1. Display Tasks
2. Add Task
3. Remove Task
4. Exit
Enter your choice: 4
Exiting the program.