To check if a string contains special characters you need to use the following method -
Char.IsLetterOrDigit
Use it in a for loop and check if it contains special characters string.
Suppose our string is -
string str = "Amit$#%";
Now convert the string to character array -
str.ToCharArray();
Use for loop and check each character using isLetterOrDigit() method.
Let’s look at the complete code.
Live Demo
using System;
namespace Demo {
class myApplication {
static void Main(string[] args) {
string str = "Amit$#%";
char[] one = str.ToCharArray();
char[] two = new char[one.Length];
int c = 0;
for (int i = 0; i < one.Length; i++) {
if (!Char.IsLetterOrDigit(one[i])) {
two[c] = one[i];
c++;
}
}
Array.Resize(ref two, c);
Console.WriteLine("Following are the special characters:");
foreach(var items in two) {
Console.WriteLine(items);
}
Console.ReadLine();
}
}
}Following are the special characters: $ # %
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