using System;
using System.Collections.Generic;
using System.Text;


namespace methodExamples
{
    class Program
    {
        static void Main()
        {
            //call the display method
            Display();
            
            // pause for a key
           Console.ReadKey();
        }//end of main

        //this method takes a number as a parameter
        //and return the square root of that number
        static double GetSquareRoot(double num)
        {
          
            // assign the square root returned
            //from Math.Sqrt method
            double square = Math.Sqrt(num);
            //return the squareroot to the calling
            //method
            return square;
           
        }// end GetSquareRoot

        //this method displays the prompts
        //gets the input, calls the GetSquareRootMethod
        //and displays the result
        static void Display()
        {
            //display the prompt
            Console.WriteLine("Enter a number");
            //get the number from the console
            double number = double.Parse(Console.ReadLine());
            //call the GetSquareRoot method, pass it the
            //number from the console
            //and assign the return value to squareRt
            double squareRt = GetSquareRoot(number);
            //Display the results
            Console.WriteLine(" Square root of {0} is {1}", number, squareRt);
        }// end display
    }//end program class
}//end namespace