Adding a newline into a string in C#

Question

I have a string.

string strToProcess = "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@";

I need to add a newline after every occurence of "@" symbol in the string.

My Output should be like this

fkdfdsfdflkdkfk@
dfsdfjk72388389@
kdkfkdfkkl@
jkdjkfjd@
jjjk@

Answer 1

string text = "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@";

text = text.Replace("@", "@" + System.Environment.NewLine);

Answer 2

You can add a new line character after the @ symbol like so:
string newString = oldString.Replace("@", "@\n");
You can also use the newline property in the Environment Class (I think it is Environment).

Answer 3

A simple string replace will do the job. Take a look at the example program below:

using System;

namespace NewLineThingy
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@";
            str = str.Replace("@", "@" + Environment.NewLine);
            Console.WriteLine(str);
            Console.ReadKey();
        }
    }
}

Answer 4

The previous answers come close, but to meet the actual requirement that the @ symbol stay close, you'd want that to be str.Replace("@", "@" + System.Environment.NewLine). That will keep the @ symbol and add the appropriate newline character(s) for the current platform.

Answer 5

Then just modify the previous answers to:

Console.Write(strToProcess.Replace("@", "@" + Environment.Newline));

If you don't need want the newlines in the text file, then don't preserve it.

Answer 6

Based on your replies to everyone else, something like this is what you're looking for.

        string file = @"C:\file.txt";
        string strToProcess = "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@";
        string[] lines = strToProcess.Split(new char[] { '@' }, StringSplitOptions.RemoveEmptyEntries);

        using (StreamWriter writer = new StreamWriter(file))
        {
            foreach (string line in lines)
            {
                writer.WriteLine(line + "@");
            }
        }

Answer 7

as others have said new line char will give you a new line in a text file in windows. try the following:

using System;
using System.IO;

static class Program
{
    static void Main()
    {
        WriteToFile
        (
        @"C:\test.txt",
        "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@",
        "@"
        );

        /*
        output in test.txt in windows =
        fkdfdsfdflkdkfk@
        dfsdfjk72388389@
        kdkfkdfkkl@
        jkdjkfjd@
        jjjk@ 
        */
    }

    public static void WriteToFile(string filename, string text, string newLineDelim)
    {
        bool equal = Environment.NewLine == "\r\n";

        //Environment.NewLine == \r\n = True
        Console.WriteLine("Environment.NewLine == \\r\\n = {0}", equal);

        //replace newLineDelim with newLineDelim + a new line
        //trim to get rid of any new lines chars at the end of the file
        string filetext = text.Replace(newLineDelim, newLineDelim + Environment.NewLine).Trim();

        using (StreamWriter sw = new StreamWriter(File.OpenWrite(filename)))
        {
            sw.Write(filetext);
        }
    }
}