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C# / .NET - replace last character in string
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In this article, we would like to show you how to replace the last character in string in Java.
Quick solution:
xxxxxxxxxx1
string originalString = "123";2
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string replaced = originalString.Substring(0, originalString.Length - 1) + "4";4
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Console.WriteLine(originalString); // 1236
Console.WriteLine(replaced); // 124
xxxxxxxxxx1
using System;2
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public class Program4
{5
static string ReplaceLastLetter(string text, string newLetter)6
{7
string substring = text.Substring(0, text.Length - 1); // ABC -> AB8
return substring + newLetter; // ABD9
}10
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public static void Main(string[] args)12
{13
string text = "ABC";14
string newLetter = "D";15
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string replaced = ReplaceLastLetter(text, newLetter);17
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Console.WriteLine(text); // ABC19
Console.WriteLine(replaced); // ABD20
}21
}Output:
xxxxxxxxxx1
ABC2
ABDxxxxxxxxxx1
using System;2
3
public class Program4
{5
static string ReplaceLastLetter(string originalString, string newLetter)6
{7
string substring = originalString.Remove(originalString.Length - 1, 1); // ABC -> AB8
return substring + newLetter; // ABD9
}10
11
public static void Main(string[] args)12
{13
string originalString = "ABC";14
string newLetter = "D";15
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string replaced = ReplaceLastLetter(originalString, newLetter);17
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Console.WriteLine(originalString); // ABC19
Console.WriteLine(replaced); // ABD20
}21
}Note:
Duplicated article: C#/.NET - replace last char in string
In the future, combine these 2 articles into one.
