Replace particular character from the string or line

Mai Hu Na

Hi all,
I want to replace the perticular character from the string .
My string is
string original="(My friend name is "WALTERS K,SCHULTHIES SPL ","Lenny")";

Above is my string and i want to remove the comma only is in the first double quote from the string and replace with a single space.
If comma ocuur otherwise in my string then i want to keep this as it is. No change in the whole string .
then Output that i want is the
(My friend name is "WALTERS K SCHULTHIES SPL ","Lenny")

How i will do it?

5 Replies

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Yin14y ago
Accepted answer
Using C#.Net:
string original2 = original.Replace(","," ");
Vulpes14y ago
Here's one way to generalize it:

using System;
using System.Text.RegularExpressions;

class Test
{
static void Main()
{
string original = "(My friend name is \"WALTERS K,SCHULTHIES SPL \",\"Lenny\",salunke)";
int n = 2;
// get index of 'n'th comma and replace it with a space
string result = original;
int count = 0;
int i;
for(i = 0; i < original.Length; i++)
{
if (original[i] == ',')
count++;
if (count == n) break;
}
if (count == n )
{
result = original.Substring(0, i) + " " + original.Substring(i + 1);
}
Console.WriteLine(result);
Console.ReadKey();
}
}

You can also use a regular expression :

using System;
using System.Text.RegularExpressions;

class Test
{
static void Main()
{
string original = "(My friend name is \"WALTERS K,SCHULTHIES SPL \",\"Lenny\",salunke)";
Regex r = new Regex(",");
MatchCollection mc = r.Matches(original);
int n = 2;
// get index of 'n'th comma and replace it with a space
string result = original;
if (mc.Count >= n)
{
int index = mc[n-1].Index;
result = r.Replace(original, " ", 1, index);
}
Console.WriteLine(result);
Console.ReadKey();
}
}
Mai Hu Na14y ago
hi R Achutha, but how i got index of particular comma in string(other then first index and last index) i want to generize thid example. Thanks in Advance.

for ex:-
i want index of 2nd comma(,) in below string
string original = "(My friend name is \"WALTERS K,SCHULTHIES SPL \",\"Lenny\",salunke)";
output expected is
(My friend name is "WALTERS K,SCHULTHIES SPL " "Lenny",salunke)
Yin14y ago
try this one:
string new_orig = Replace(original, ","," ");
R ACHUTHA14y ago
Hi ,
try the below one

string original = "(My friend name is \"WALTERS K,SCHULTHIES SPL \",\"Lenny\")";
int index = original.IndexOf(",");
original= index >=0 ? original.Remove(index,1).Insert(index,@" ") : original;
Response.Write(original);