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I have a input string,
string str1 = "aabcccabdfa";
I want to count the occurrence of each character and put it next to that character. So I need to output result as "a4b2c3d1f1". How can i achieve this with LINQ?
I try with "Dictionary" to do that, but not able to do that.
Thanks,
Do it like this:
string str1 = "aabcccabdfa";
string.Concat(str1.GroupBy(c => c).OrderBy(c => c.Key).Select(c => c.Key.ToString() + c.Count()));
string str1 = "aabcccabdfa";
var result=string.Concat(str1.GroupBy(a=>a)
.Select(a=>a.Key.ToString()+a.Count().ToString()));
string str1 = "aabcccabdfa";
var output = "";
str1.ToArray().Distinct().ToList().ForEach(x => output += x + (str1.Count(f => f == x).ToString()));
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Here's the phrase I'd like to convert.
Summoner1 joined the lobby.
Summoner2 jonied the lobby.
Summoner3: Top
Summoner4: ADC
I wanna pick up these words Summoner1, Summoner2, Summoner3, Summoner4.
I suppose I should detect the strings "joined the lobby", and ": " using regular expression(regex) but I have no clue how to.
Thank you in advance.
Codes for extra question.
var list = #"Summoner1 joined the lobby.
Summoner2 jonied the lobby.
Summoner3: Top
Summoner4: ADC";
var result = string.Join("|", list.Select(x => Regex.Replace(x, "( |:).*", string.Empty)));
If you want to use Regex, you can use the following.
"( |:).*"
Example,
var list= #"Summoner1 joined the lobby.
Summoner2 jonied the lobby.
Summoner3: Top
Summoner4: ADC";
var result = list.Split(new []{Environment.NewLine},StringSplitOptions.RemoveEmptyEntries).Select(x=> Regex.Replace(x,"( |:).*",string.Empty));
Update: Based on Comment
var result = string.Join("|",list.Split(new []{Environment.NewLine},StringSplitOptions.RemoveEmptyEntries).Select(x=> Regex.Replace(x,"( |:).*",string.Empty)));
Output
Summoner1|Summoner2|Summoner3|Summoner4
string sourc = #"Summoner1 joined the lobby.
Summoner2 jonied the lobby.
Summoner3: Top
Summoner4: ADC";
Regex reg = new Regex("^[\\s]*(Summoner[\\d])+.*$", RegexOptions.Multiline);
var result = reg.Matches(sourc).ToList().Select(x => x.Groups[1].Value).ToList();
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I have the following string:
string input ="this is a testx";
I need to remove the spaces and then split the input into chunks of two, so I can process every two letters individually:
th is is at es tx
I tried to remove the spaces with:
input=input.Remove(input.IndexOf(' '),1);
Then I couldn't do much with the splitting...
IEnumerable<string> output = input
.Replace(" ", string.Empty)
.Select((ch, i) => new{ch, grp = i/2})
.GroupBy(x => x.grp)
.Select(g => string.Concat(g.Select(x => x.ch)));
or more sensibly :)
input = input.Replace(" ", string.Empty);
IEnumerable<string> output =
Enumerable.Range(0, input.Length / 2).Select(x => input.Substring(x * 2, 2));
you can use the output as follows:
foreach(var item in output)
{
Console.WriteLine(item);
}
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I want to replace particular string in another string if it contain that word . example
give string is "asp,mvc,c#,wpf" and another string is "<b>asp</b>,<b>wpf</b>" and my final result should be "<b>asp</b>,mvc,c#,<b>wpf</b>" , i have no idea about how to do it in c# code .please help me.
You can do this:
var str = "asp,mvc,c#,wpf";
var anotherStr = "<b>asp</b>,<b>wpf</b>";
var myArr = anotherStr.Replace("<b>", "").Replace("</b>", "").Split(',');
foreach (string value in myArr)
{
str = str.Replace(value, "<b>" + value + "</b>");
}
Console.WriteLine(str);
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Move the selected string to first in comma separated string c#
If my csvstring is : C1,C2,C3
if my selectedstring is : C2
I require an output of : C2,C1,C3
Using the expression power of LINQ:
string cvsstring = "C1,C2,C3";
string selected = "C2";
cvsstring = string.Join(
",",
new[] { selected }.Concat(cvsstring.Split(',').Except(selected));
If there are more than one selected instances, the duplicated will be removed by this code. As the question is very unprecise about that I won't give a solution (using OrderBy, for example).
You can split, sort and join:
string csv = "C1,C2,C3";
string selected = "C2";
csv = String.Join(',', csv.Split(',').OrderBy(s => s == selected ? 0 : 1));
How about this?
var text ="C1,C2,C3";
var splits = text.Split(',');
var results =
String.Join(",",
Enumerable.Concat(
splits.Where(x => x == "C2"),
splits.Where(x => x != "C2")));
Maybe something like this:
var str= "C1,C2,C3";
var selected="C2";
var result= string.Join(",", str.Split(',').OrderBy (s =>s==selected?0:1));
It is pretty easy. Try below given code:
string csvstring = "C1,C2,C3";
string seletedstring = "C2";
string outputstring = selectedstring + csvstring.Replace(seletedstring .ToString(),"");
outputstring = outputstring.Replace(",,","");
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string oldstring = textBox9.Text;
string newstring = oldstring.Remove(0, 2);
string o = newstring.Remove(4, 7);
Now, I want to get only "1500",rest of the things to be removed.
How can I do this? Please help me.
Try the following code
string newstring = Regex.Replace(oldstring, #"[^\d]", "");
It shall work.
there are number of ways to do this.. you can use Split() as below:
string oldstring = "Rs1500/ONLY";
string[] newstring = oldstring.Split('/');
string o = newstring[0];
This will give you "RS 1500" as result.
And if you want to remove RS as well then just add the below code in last of the above code:
string final = newstring[0].ToString().Replace("Rs","");
That's All
You can use Replace
string oldstring = textBox9.Text;
string newstring = oldstring.Replace("Rs","").Replace("/ONLY","");
This should give you only 1500
Try this way
string ss = "Rs1500/ONLY";
string[] newss = ss.Split('/');
ss = newss[0].ToString().Replace("Rs","");//Or try string.Empty() for instead of ""
See this demo code : with output