public void print() //Print function
{
DLLNode tmp = head;
while (tmp != null)
{
Console.WriteLine(tmp.num);
tmp = tmp.next;
}
}
public void addToTail(DLLNode p) //Add to tail function
{
if (tail == null)
{
tail = p;
head = p;
return;
}
tail.next = p;
p.prev = tail;
tail = p;
return;
}
public void printMiddle() //Print middle node function
{
DLLNode slow = head;
DLLNode fast = head;
if (head != null)
{
while (fast != null && fast.next != null)
{
fast = fast.next.next;
slow = slow.next;
}
Console.WriteLine("The middle node is: " + slow.num);
}
}
public void PrintPrimes(DLLNode p) //Method to print primes
{
DLLNode temp = p;
int count = 0;
Console.WriteLine("The prime numbers are: ");
while (temp != null)
{
if (IsPrime(temp.num))
{
count += 1;
Console.Write(temp.num + " ");
if (count == 5)
{
Console.Write("\r\n");
}
}
temp = temp.next;
}
}
public DLL()
{
head = null; tail = null;
}
public DLLNode(int num)
{
next = null;
prev = null;
this.num = num;
}
static void Main(string[] args)
{
try
{
string[] File1 = System.IO.File.ReadAllLines(@"C:\Users\djole\Desktop\1.txt"); //Reads the file
string[] File2 = System.IO.File.ReadAllLines(@"C:\Users\djole\Desktop\2.txt");
string[] File3 = System.IO.File.ReadAllLines(@"C:\Users\djole\Desktop\3.txt");
int[] arr1 = new int[File1.Length];
int[] arr2 = new int[File2.Length];
int[] arr3 = new int[File3.Length];
int[] list1 = Array.ConvertAll(File1, int.Parse); //Convert
int[] list2 = Array.ConvertAll(File2, int.Parse);
int[] list3 = Array.ConvertAll(File3, int.Parse);
DLL a = new DLL();
DLL b = new DLL();
DLL c = new DLL();
if (arr1.Length > 0)
{
for (int i = 0; i < list1.Length; i++)
{
DLLNode p = new DLLNode(list1[i]);
a.addToTail(p);
}
Console.WriteLine("Content of the first text file is: ");
a.print();
a.printMiddle();
a.PrintPrimes(a.head);
Console.WriteLine(" ");
}
else
{
Console.WriteLine("The first file is empty, error! ");
}
if (arr2.Length > 0)
{
for (int i = 0; i < list2.Length; i++)
{
DLLNode p = new DLLNode(list2[i]);
b.addToTail(p);
}
Console.WriteLine("Content of the second text file is: ");
b.print();
b.printMiddle();
b.PrintPrimes(b.head);
Console.WriteLine(" ");
}
else
{
Console.WriteLine("The second file is empty, error! ");
}
if (arr3.Length > 0)
{
for (int i = 0; i < list3.Length; i++)
{
DLLNode p = new DLLNode(list3[i]);
c.addToTail(p);
}
Console.WriteLine("Content of the third text file is: ");
c.print();
c.printMiddle();
c.PrintPrimes(c.head);
Console.ReadLine();
}
else
{
Console.WriteLine("The third file is empty, error! ");
Console.ReadLine();
}
}
catch (Exception)
{
Console.WriteLine("Conversion fail, error!!! ");
Console.ReadLine();
}
}
