Q:

Write a C# program to find the number of times a substring appears in the given string

YasminRadwan26
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2022-05-10
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Write a C# program to find the number of times a substring appears in the given string

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YasminRadwan26
2022-05-10
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I have use Visual Studio 2012 for debugging purpose. But you can use any version of visul studio as per your availability..

using System;
public class stringexercise
{
    public static void Main()
    {
        string str;
        string findstring;
        int start = 0;
        int cnt = -1;
        int index = -1;
 
        Console.Write("Input the original string : ");
        str = Console.ReadLine();
        Console.Write("Input the string to be searched for : ");
        findstring = Console.ReadLine();
 
        while (start != -1)
        {
            start = str.IndexOf(findstring, index + 1);
            cnt += 1;
            index = start;
        }
        Console.Write("The string '{0}' occurs " + cnt + " times.\n", findstring);
 
        Console.ReadLine();
    }
}

Result:

Input the original string : techstudy - the compelte debugging solution

Input the string to be searched for : techstudy

The string 'techstudy' occurs 1 times.

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