Code:
using System;
class program
{
public static void Main()
{
string s1;
Console.WriteLine("Enter the String : ");
s1 = Console.ReadLine();
Console.WriteLine(counting.CountStringOccurrences(s1, "the"));
Console.ReadLine();
}
}
public static class counting
{
public static int CountStringOccurrences(string text, string pattern)
{
int count = 0;
int i = 0;
while ((i = text.IndexOf(pattern, i)) != -1)
{
i += pattern.Length;
count++;
}
return count;
}
}
Output:
Enter the String :
we only loop once over the source, which reduces the cost of the method.
3
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