how to read 3 variables from text file?

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4.33/5 (3 votes)

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excuse my silly question
i want to read 3 variables x,y and z ,they are written in one horizontal line in text file "myfile.txt"
like this
123 456 7890
i have read the string by
myString=MyStreamReader.ReadLine();
there are spaces between the variables ,i do not know how many spaces between the variable
x and y , and y and z
if guss
myString.Split will not works(if Split can do the job please let me know how),i also will not prefere the
myString.Substring(id,len)
because the length of each variable is unpredected

Posted 18-Feb-11 1:56am

Khalid Sabtan

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3 solutions

Solution 3

Try:

string[] numbers = myString.Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);

Posted 18-Feb-11 2:12am

Olivier Levrey

Comments

Sergey Alexandrovich Kryukov 18-Feb-11 8:36am

Enough said, I suggest, my 5.
--SA

Solution 1

If there are spaces for sure between variables, you can split that string with space and than you can use only those strings whose value is not ''.

Posted 18-Feb-11 2:06am

nagendrathecoder

Comments

Sergey Alexandrovich Kryukov 18-Feb-11 8:36am

Don't teach sloppy coding. For future, you should use string.Empty instead of "", to avoid hard-coded immediate constants, even this one, set aside StringSplitOptions.RemoveEmptyEntries.
--SA

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CPallini · Accepted Answer · 2011-02-18T02:08:00

Solution 2

String.Split works, provide you specify the RemoveEmptyEntries option, for instance:

C#

string str = "123 456          7890";
string[] snum = str.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
int[] v = new int[snum.Length];
for (int n = 0; n < v.Length; n++ )
{
    v[n] = int.Parse(snum[n]);
}

Posted 18-Feb-11 2:08am

CPallini

Updated 18-Feb-11 2:19am

v3

Comments

nagendrathecoder 18-Feb-11 8:15am

This is much better option. :), 5 to you.

Sergey Alexandrovich Kryukov 18-Feb-11 8:37am

Passed, my 5.
--SA

CPallini 18-Feb-11 8:56am

:-D

fjdiewornncalwe 18-Feb-11 20:19pm

Exactly correct. +5.