C# Methods | Value Returning and Non Value Returning | Parameters | Optional Parameter | C# Tutoria

Here is one example that covers all of the concepts below:
1. C# Methods - non value returning
2. C# Methods - value returning
3. C# Methods - no parameters, one parameter, multiple parameters and optional parameter
4. C# Method call within a method call (Process called Nesting methods)
5. Code reduction {Coding less instructions to achieve the same results}
6. Converting returning values from one data type to another.

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C# Methods | Value Returning and Non Value Returning | Parameters | Optional Parameter | C# Tutorial
#Methods #ValueReturning #NonValueReturning #OptionalParameters

CODE:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ModularizationExampleX1
{
using static System.Console;
class Program
{
static void Main(string[] args)
{
//calling method BookInfo()
//You can call a method from the call to another method
//BookInfo(val1, val2);
//BookInfo(input(), val2);
BookInfo(input(), Convert.ToDouble(input("Please enter a book price: "))); //sequence of parameters must match
//accepting input from user then passing that as parameters to method BookInfo()
//call Method input() it will return a value of type string, then store that value in the variable
string title = input();
double pr = Convert.ToDouble(input("Please enter a book price: "));
BookInfo(title, pr);
Read();
}
static void BookInfo(string title, double price)
{
WriteLine("Book Title: " + title);
WriteLine("Book Price: " + price.ToString("C"));
}
//accept the input from user and send the input back to Main()
//to code a value returning method
/* DATATYPE is the return type and return statement will return a value of that type
* static DATATYPE MethodName({optional parameters})
* {
*
* return valueDATATYPE;
* }
*/
//optional parameter - Chapter 8 Pages 332 through 334
static string input(string msg= "Please Enter a Book Title: ")
{
Write(msg);
string title = ReadLine();
return title;
}
}
}