using System;
 
 
 
namespace lessonThree
 
{
 
 ///<summary>
 
 /// In this lesson we will cover some basic math
 
 /// operations, look at an if statement and a few other
 
 /// useful things that should be understood when
 
 /// programming in C#
 
 ///</summary>
 
 class thirdLesson
 
	 {
 
 ///<summary>
 
 /// Ask an age.
 
 /// If under 18 -> Exit Program
 
 /// Give lucky number for the day
 
 /// Predict when person will get rich.
 
 ///</summary>
 
			[STAThread]
 
 static void Main(string[] args)
 
			{
 
 int age;
 
 //Random object createRand
 
				 Random createRand = new Random();
 
 int luckyNumber;
 
 
 
				 Console.Write("Enter your age: ");
 
 //grab the input from user and convert it to
 
 //an integer, hence the 'Convert.ToInt32();
 
				 age = Convert.ToInt32(Console.ReadLine());
 
 
 
 //skip line
 
				 Console.WriteLine();
 

 
 if (age > 17)
 
				 {
 

 
 //Random generated numbers range from 0 to 1, 
 
 //therefore we multiply by ten (10) below
 
				 //The .NextDouble() method helps retrieve the value
 
				luckyNumber = (int)(createRand.NextDouble()*10);
 

 
				Console.WriteLine("Your Lucky Number is: {0}", luckyNumber);
 
 //Here you use the value of luckyNumber and add it to his age
 
			 Console.WriteLine("You are {0} years old and will be rich at age: {1}", age, age+luckyNumber);
 
 //As you can see the zero in braces {0} holds the variable age
 
 //and the one in braces {1} holds the sum of the variables "age and luckyNumber" age+luckyNumber
 

 
				 }//If the age is not 18 or above we conclude by saying
 

 
				 Console.WriteLine("Thanks and Have a Great Day");
 
				 Console.WriteLine();
 
				 Console.WriteLine("Press [ENTER] to Exit");
 
				 Console.ReadLine();
 
 
 
			}//end Main()
 
	 }//end class
 
}//end namespace  

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


namespace TestRand {

	public class Program {

		private Random randomField = new Random();

		static void Main(string[] args) {
			Program o = new Program();

			//Start generating 10 random numbers
			Console.WriteLine("Random from within main");
			Random randinMain = new Random();
			for (int i = 0; i < 10; i++) {
				Console.WriteLine(randinMain.Next(100));
			}

			Console.WriteLine("Random from within function");
			o.RandinFunction();

			Console.WriteLine("Random with function random object passed as argument to function");
			o.RandWithField(o.randomField);

			Console.WriteLine("Random using a field no function");
			for (int i = 0; i < 10; i++) {
				Console.WriteLine(o.randomField.Next(100));
			}

			Console.WriteLine("Random using a field - function");
			o.RandWithField(o.randomField);
			
			Console.ReadLine();

		}

		/// <summary>
		/// generate 10 random numbers with random object in function
		/// </summary>
		public void RandinFunction() {
			Random randInFunction = new Random();
			for (int i = 0; i < 10; i++) {
				Console.WriteLine(randInFunction.Next(100));
			}
		}
		
		/// <summary>
		/// generate 10 random numbers with random object from field
		/// </summary>
		/// <param name="r"></param>
		public void RandWithField(Random r) {
			for (int i = 0; i < 10; i++) {
				Console.WriteLine(r.Next(100));
			}			
		}


	}
}