Problem Reversing multiple lines from a text file in C#

Question

Hello everyone..
I am trying to decode the text below by reversing it.
,sdreh ni dam og yeht taht nees eb lliw ti ;sdreh ni kniht neM"
".eno yb eno dna ,ylwols sesnes rieht revocer ylno yeht elihw
yakcaM selrahC
I used this code to do it.
String reed = File.ReadAllText("DecodeThis.txt");
char[] array1 = reed.ToCharArray();
Array.Reverse(array1);
Console.WriteLine(array1);
Console.ReadLine();
the output is:
"Charles Mackay
while they only recover their senses slowly, and on by one.?
?Men think in hards: it will be seen taht they go mad in herds"
I want the output to be
" Men think in hards: it will be seen taht they go mad in herds,
while they only recover their senses slowly, and on by one.
Charles Mackay"
How can i do that? please help

Vulpes · Accepted Answer

You can tweak your code as follows to obtain the correct result:
String reed = File.ReadAllText("DecodeThis.txt");
char[] array1 = reed.ToCharArray();
Array.Reverse(array1);
string[] lines = new String(array1).Replace("", "").Split('
');
Array.Reverse(lines);
reed = String.Join("
", lines);
Console.WriteLine(reed);
Console.ReadLine();

abood net · Answer

Vulpes, You are my savior man!

abood net · Answer

when i ran your code i received this error:
NullReferenceException was unhandled
Object reference not set to an instance of an object.

Answer

please try this code. You have do the reverse line by line. So, you the streamreader for this.
StreamReader reader = new StreamReader("DecodeThis.txt");
while(true)
{
char[] array1 = reader.ReadLine().ToCharArray();
Array.Reverse(array1);
Console.WriteLine(array1);
}
reader.Close();
I am getting the output as
"Men think in herds; it will be seen that they go mad in herds,
while they only recover their senses slowly, and one by one."
Charles Mackay
Hope this helps you.

abood net · Answer

Thanks man for ur reply ..
I know how to do it line by line using while loop but i was wondering if i can tweak my code to achieve the same results!?

Frogleg · Answer

Try this
using (StreamReader sr = new StreamReader("DecodeThis.txt"))
{
String reed = sr.ReadLine();
String reed1 = sr.ReadLine();
String reed2 = sr.ReadLine();
char[] array1 = reed.ToCharArray();
char[] array2 = reed1.ToCharArray();
char[] array3 = reed2.ToCharArray();
Array.Reverse(array1);
Array.Reverse(array2);
Array.Reverse(array3);
Console.WriteLine(array1);
Console.WriteLine(array2);
Console.WriteLine(array3);
}