static void Main(string[] args)
{
Page pageFirst = new Page()
{
Content = "Nowadays, there are various (...)"
};
Page pageSecond = new Page()
{
Content = "Application development is (...)"
};
Page pageThird = new Page()
{
Content = "A lot of applications (...)"
};
Page pageFourth = new Page()
{
Content = "Do you know that modern (...)"
};
Page pageFifth = new Page()
{
Content = "While developing applications (...)"
};
Page pageSixth = new Page()
{
Content = "Could you imagine your (...)"
};
LinkedList <Page> pages = new LinkedList <Page>();
pages.AddLast(pageSecond);
LinkedListNode <Page> nodePageFourth = pages.AddLast(pageFourth);
pages.AddLast(pageSixth);
pages.AddFirst(pageFirst);
pages.AddBefore(nodePageFourth, pageThird);
pages.AddAfter(nodePageFourth, pageFifth);
LinkedListNode <Page> current = pages.First;
int number = 1;
while (current != null)
{
Console.Clear();
string numberString = $"- {number} -";
int leadingSpaces = (90 - numberString.Length) / 2;
Console.WriteLine(numberString.PadLeft(leadingSpaces + numberString.Length));
Console.WriteLine();
string content = current.Value.Content;
for (int i = 0; i < content.Length; i += 90)
{
string line = content.Substring(i);
line = line.Length > 90 ? line.Substring(0, 90) : line;
Console.WriteLine(line);
}
Console.WriteLine();
Console.WriteLine($"Quote from \"Windows Application Development Cookbook\" by Marcin Jamro,{Environment.NewLine}published by Packt Publishing in 2016.");
Console.WriteLine();
Console.Write(current.Previous != null ? "< PREVIOUS [P]" : GetSpaces(14));
Console.Write(current.Next != null ? "[N] NEXT >".PadLeft(76) : string.Empty);
Console.WriteLine();
switch (Console.ReadKey(true).Key)
{
case ConsoleKey.N:
if (current.Next != null)
{
current = current.Next;
number++;
}
break;
case ConsoleKey.P:
if (current.Previous != null)
{
current = current.Previous;
number--;
}
break;
default:
return;
}
}
}
public static void Main(string[] args)
{
string menuSelection = "", newNode = "", existingNode = "";
LinkedList ll = new LinkedList(new Node("zzz"));
do
{
newNode = "";
PrintMainMenu();
menuSelection = Console.ReadLine();
Console.Clear();
switch (menuSelection)
{
case "1":
Console.WriteLine("What value you like the new Node to contain?");
newNode = Console.ReadLine();
if (newNode != "")
{
ll.AddNode(new Node(newNode));
}
else
{
Console.Clear();
Console.WriteLine("Sorry, you must input a value for the Node. Please try again.");
}
Console.Write("\nPress any key to return to main menu...");
Console.ReadKey();
Console.Clear();
break;
case "2":
Console.WriteLine("What value you like the new Node to contain?");
newNode = Console.ReadLine();
Console.Clear();
Console.WriteLine("What is the value of the existing Node to insert the new Node before?");
existingNode = Console.ReadLine();
if (newNode != "" && existingNode != "")
{
ll.AddBefore(new Node(newNode), new Node(existingNode));
}
else
{
Console.Clear();
Console.WriteLine("Sorry, you must input a value for both Nodes. Please try again.");
}
Console.Write("\nPress any key to return to main menu...");
Console.ReadKey();
Console.Clear();
break;
case "3":
Console.WriteLine("What value you like the new Node to contain?");
newNode = Console.ReadLine();
Console.Clear();
Console.WriteLine("What is the value of the existing Node to insert the new Node after?");
existingNode = Console.ReadLine();
if (newNode != "" && existingNode != "")
{
ll.AddAfter(new Node(newNode), new Node(existingNode));
}
else
{
Console.Clear();
Console.WriteLine("Sorry, you must input a value for both Nodes. Please try again.");
}
Console.Write("\nPress any key to return to main menu...");
Console.ReadKey();
Console.Clear();
break;
case "4":
Console.WriteLine("What value you like the new Node to contain?");
newNode = Console.ReadLine();
if (newNode != "")
{
ll.AddLast(new Node(newNode));
}
else
{
Console.Clear();
Console.WriteLine("Sorry, you must input a value for the Node. Please try again.");
}
Console.Write("\nPress any key to return to main menu...");
Console.ReadKey();
Console.Clear();
break;
case "5":
Console.WriteLine("What is the value of the Node you would like to find?");
existingNode = Console.ReadLine();
if (existingNode != "")
{
Node checkNode = ll.Find(existingNode);
if (checkNode != null)
{
Console.WriteLine("\nFound!");
}
else
{
Console.WriteLine("\nThat Node doesn't exist.");
}
}
else
{
Console.Clear();
Console.WriteLine("Sorry, you must input a value for the Node. Please try again.");
}
Console.Write("\nPress any key to return to main menu...");
Console.ReadKey();
Console.Clear();
break;
case "6":
ll.PrintNodes();
Console.Write("\nPress any key to return to main menu...");
Console.ReadKey();
Console.Clear();
break;
case "7":
Environment.Exit(0);
break;
default:
Console.WriteLine("That did not match one of the menu options. Try again.\n");
break;
}
} while (menuSelection != "7");
}
