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How to convert an integer to hexadecimal and vice versa in C#?
Converting Integer to Hexadecimal
An integer can be converted to a hexadecimal by using the string.ToString() extension method.
Integer Value: 500 Hexadecimal Value: 1F4
Converting Hexadecimal to Integer −
A hexadecimal value can be converted to an integer using int.Parse or convert.ToInt32
int.Parse − Converts the string representation of a number to its 32-bit signed integer equivalent. A return value indicates whether the operation succeeded.
Hexadecimal Value: 1F4 Integer Value: 500
Convert.ToInt32 −Converts a specified value to a 32-bit signed integer.
Hexadecimal Value: 1F4 Integer Value: 500
Converting Integer to Hexadecimal −
string hexValue = integerValue.ToString("X");
Example
using System;
namespace DemoApplication{
public class Program{
public static void Main(){
int integerValue = 500;
Console.WriteLine($"Integer Value: {integerValue}");
string hexValue = integerValue.ToString("X");
Console.WriteLine($"Hexadecimal Value: {hexValue}");
Console.ReadLine();
}
}
}Output
The output of the above code is
Integer Value: 500 Hexadecimal Value: 1F4
Converting Hexadecimal to Integer −
Example using int.Parse −
Example
using System;
namespace DemoApplication{
public class Program{
public static void Main(){
string hexValue = "1F4";
Console.WriteLine($"Hexadecimal Value: {hexValue}");
int integerValue = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);
Console.WriteLine($"Integer Value: {integerValue}");
Console.ReadLine();
}
}
}Output
The output of the above code is
Hexadecimal Value: 1F4 Integer Value: 500
Example using Convert.ToInt32 −
Example
using System;
namespace DemoApplication{
public class Program{
public static void Main(){
string hexValue = "1F4";
Console.WriteLine($"Hexadecimal Value: {hexValue}");
int integerValue = Convert.ToInt32(hexValue, 16);
Console.WriteLine($"Integer Value: {integerValue}");
Console.ReadLine();
}
}
}Output
The output of the above code is
Hexadecimal Value: 1F4 Integer Value: 500
Updated on 19-Aug-2020 11:13:29
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