How to split numbers from string in C#

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I have a list of countries in a string format like this:

123 USA, America
126 South Africa, Africa

i want to be able to split country code, country name and continent and save in a list or array, country code will have index[0], country name[1] and continent[2] in that order.

I have tried this:

What I have tried:

string number = "123 USA, America";
 string[] numbers = number.Split(',');

that only split the string into two: "123 USA" and "America", i want to be able to get the number part as well.

Posted 22-Nov-19 21:23pm

Uwakpeter

Updated 22-Nov-19 22:52pm

v2

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3 solutions

Solution 1

Try:

C#

    string number = "123 USA, America";
    string[] numbers = number.Split(splitChars, StringSplitOptions.RemoveEmptyEntries);
...
private char[] splitChars = " ,".ToArray();

Posted 22-Nov-19 22:00pm

OriginalGriff

Solution 2

using System.Linq;

	string test = " 123 abc";
	string nums = new String(test.Where(Char.IsDigit).ToArray());

Posted 22-Nov-19 22:07pm

RickZeeland

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phil.o · Accepted Answer · 2019-11-22T22:52:00

You can also use a regular expression to get the different parts:

C#

using System.Text.RegularExpressions;
// ...
const string pattern = @"^(?<number>\d+)\s*(?<country>[^,]+),\s*(?<continent>[^,]+)$";

string test1 = "123 USA, America";
string test2 = "126 South Africa, Africa";

Regex r = new Regex(pattern, RegexOptions.Compiled);

Match m = r.Match(test1);
int number = int.Parse(m.Groups["number"].Value); // 123
string country = m.Groups["country"].Value; // USA
string continent = m.Groups["continent"].Value; // America

m = r.Match(test2);
number = int.Parse(m.Groups["number"].Value); // 126
country = m.Groups["country"].Value; // South Africa
continent = m.Groups["continent"].Value; // Africa