C# count each element in string array

Question

I have file of such data:

2016-07-01 - this is data
39
40
36
37
40
37

I want to count each elements in my array. For example: 10, 2, 2, 2, 2, 2, 2. How do that?

        string FilePath = @"path";
        int counteachelement = 0;
        string fileContent = File.ReadAllText(FilePath);
        string[] integerStrings = fileContent.Split(new char[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
        for (int n = 0; n < integerStrings.Length; n++)
        {
           counteachelement = integerStrings.GetLength(n);
           Console.Write(counteachelement + "\n");
        }

Array.GetLength returns the number of elements in the specified dimension. You have a string[] with only one dimension so this is useless. You can use integerStrings.Length — Tim Schmelter
– Tim Schmelter, Commented Jul 1, 2016 at 8:00

fubo · Accepted Answer · 2016-07-01 07:59:57Z

3

how about

List<int> Result = integerStrings.Select(x => x.Length).ToList();

answered Jul 1, 2016 at 7:59

fubo

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Comments

Souvik Ghosh · Accepted Answer · 2016-07-01 08:16:22Z

1

Here I have modified your code to get the count of each element inside the for loop that you are using-

        string FilePath = @"path";
        int counteachelement = 0;
        string fileContent = File.ReadAllText(FilePath);
        string[] integerStrings = fileContent.Split(new char[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
        int count = 0;
        for (int n = 0; n < integerStrings.Length; n++)
        {
            count = integerStrings[n].Length;
        }

edited Jul 1, 2016 at 8:16

answered Jul 1, 2016 at 8:04

Souvik Ghosh

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Comments

Matthew Watson · Accepted Answer · 2016-07-01 08:11:27Z

1

You can use File.ReadLines() to avoid holding all the lines in memory at once, and then simply use Enumerable.Select() to pick out the length of each line. (This assumes that you are not ignoring or do not have any blank lines):

var lengths = File.ReadLines(FilePath).Select(s => s.Length);
Console.WriteLine(string.Join("\n", lengths));

answered Jul 1, 2016 at 8:11

Matthew Watson

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Comments

Tran Anh Hien · Accepted Answer · 2016-10-11 07:56:08Z

1

You can use javascript:

 
var arr=["39","9","139"];
var temp="";
for(i=0;i<arr.length;i++)
 temp += (arr[i].length) + ", ";
alert("Lenght element array: " +temp.toString());

edited Oct 11, 2016 at 7:56

answered Jul 1, 2016 at 8:39

Tran Anh Hien

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user6522773 · Accepted Answer · 2016-07-01 08:00:39Z

0

string[] contents = File.ReadAllLines(@"myfile.txt");
foreach(var line in contents)
{
  line.Length // this is your string length per line
}

answered Jul 1, 2016 at 8:00

user6522773

Comments

Anoop Joshi P · Accepted Answer · 2016-07-01 08:02:50Z

0

You can do,

var str = "2016-07-01 - this is data,39,40,36,37,40,37,";
var Result = str.Split(',').Select(p => p.Count()).ToList();

Note: I am considering your input as comma separated values.

answered Jul 1, 2016 at 8:02

Anoop Joshi P

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Comments

Kahbazi · Accepted Answer · 2016-07-01 10:15:49Z

0

You can use Linq to do this

List<string> list = new List<string>();

list.Add("39");
list.Add("40");
list.Add("36");
list.Add("37");
list.Add("40");
list.Add("37");
list.Add("39");

var output = list.Select(i => i.Length);

Console.WriteLine(string.Join(" ",output));
//"2 2 2 2 2 2 2"

edited Jul 1, 2016 at 10:15

answered Jul 1, 2016 at 8:00

Kahbazi

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