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C# / .NET - count character occurrences
0 points
In this article, we would like to show you how to count occurrences of a character in a String in C#.
Quick solution:
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char character = 'A';2
string text = "ABAC";3
4
int count = 0;5
6
for (int i = 0; i < text.Length; ++i)7
{8
if (text[i] == character)9
count += 1;10
}11
12
Console.WriteLine(count );Output:
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2
In this example, we create simple for loop to iterate through the string and check if each character matches the character we want.
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using System;2
3
public class Program4
{5
public static void Main()6
{7
char character = 'A';8
string text = "ABAC";9
10
int count = 0;11
12
for (int i = 0; i < text.Length; ++i)13
{14
if (text[i] == character)15
count += 1;16
}17
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Console.WriteLine(count);19
}20
}Output:
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2In this example, to count character occurrences, we calculate the difference between the original string and the string with removed specified characters.
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using System;2
3
public class TestClass4
{5
public static void Main()6
{7
string text = "ABCA";8
string character = "A";9
10
int result = text.Length - text.Replace(character, "").Length;11
12
Console.WriteLine(result);13
}14
}Output:
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2In this example, we use Split() method with string Length to count the occurrences of the A character in the text.
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using System;2
3
public class TestClass4
{5
public static void Main()6
{7
string text = "ABCA";8
string character = "A";9
int result = text.Split(character).Length - 1;10
Console.WriteLine(result);11
}12
}Output:
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2