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Check whether the specified Unicode character is a letter or a decimal digit in C#
To check whether the specified Unicode character is a letter or a decimal digit, the code is as follows −
Example
using System;
public class Demo {
public static void Main() {
bool res;
char val = '1';
Console.WriteLine("Value = "+val);
res = Char.IsLetterOrDigit(val);
Console.WriteLine("Is the value a letter or digit? = "+res);
}
}Output
This will produce the following output −
Value = 1 Is the value a letter or digit? = True
Example
Let us see another example −
using System;
public class Demo {
public static void Main() {
bool res;
char val = '$';
Console.WriteLine("Value = "+val);
res = Char.IsLetterOrDigit(val);
Console.WriteLine("Is the value a letter or digit? = "+res);
}
}Output
This will produce the following output −
Value = $ Is the value a letter or digit? = False
Updated on: 05-Dec-2019
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