C#: Check whether a given string contain the character 'z' from 2 to 4 times

C# Sharp Basic Algorithm: Exercise-22 with Solution

Write a C# Sharp program to check if a given string contains between 2 and 4 'z' characters.

Visual Presentation:

Sample Solution:

C# Sharp Code:

using System;

// Namespace declaration
namespace exercises
{
    // Class declaration
    class Program
    {
        // Main method - entry point of the program
        static void Main(string[] args)
        {
            // Displaying the output of the 'test' method with different strings
            Console.WriteLine(test("frizz")); // Output: True
            Console.WriteLine(test("zane"));  // Output: True
            Console.WriteLine(test("Zazz"));  // Output: False
            Console.WriteLine(test("false")); // Output: False
            Console.WriteLine(test("zzzz"));  // Output: True
            Console.WriteLine(test("ZZZZ"));  // Output: False
            Console.ReadLine();              // Keeping the console window open
        }

        // Method to check if the input string contains 'z' from 2 to 4 times
        public static bool test(string str)
        {
            int ctr = 0; // Counter to store the number of occurrences of 'z'

            // Loop through each character in the input string
            for (int i = 0; i < str.Length; i++)
            {
                // Check if the current character is 'z'
                if (str[i] == 'z')
                {
                    ctr++; // Increment the counter if the character is 'z'
                }
            }

            // Return true if the count of 'z' is greater than 1 and less than or equal to 4, otherwise return false
            return ctr > 1 && ctr <= 4;
        }
    }
}

Sample Output:

True
False
True
False
True
False

Flowchart:

C# Sharp Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a C# Sharp program to find the larger value from two positive integer values that is in the range 20..30 inclusive, or return 0 if neither is in that range.
Next: Write a C# Sharp program to check if two given non-negative integers have the same last digit