Number of occurrence of character in C#

One of my friend ask me about how we can get:

·         Length of the string

·         Number of occurrence of character i.e. Z

·         Remove the character from the string

·         Length after excluding the character i.e. Z

here is the sample code:

protected void LENGTH()

    {

        string strLen = "ZBCZDGHSZKHZHDZ";

        Response.Output.Write("String including character 'Z': " + strLen + "");

        int len = strLen.Length;

        Response.Output.Write("Total string length: " + len + "");

        int count = strLen.Split('Z').Length - 1;

        Response.Output.Write("No of occurance of character 'Z': " + count + "");

        string strFinalString = strLen.Replace("Z", string.Empty);

        Response.Output.Write("String after excluding character 'Z': " + strFinalString + "");

        Response.Write("Length after excluding character 'Z': " + strFinalString.Length);

    }

I hope you will enjoy the topic.

Cheers