Initial commit with a few examples

.gitignore

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+#Ignore all executables
+*.exe

HelloWorld.cs

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+//C#/Tutorials/HelloWorld.cs
+//Matthew Ellison
+// Created: 07-29-20
+//Modified: 07-29-20
+//This is a simple hello world program
+
+
+using System;
+
+
+namespace mee{
+	public class HelloWorld{
+		static void Main(string[] args){
+			Console.WriteLine("Hello World");
+			string testString = "World";
+			Console.WriteLine($"Hello {testString} 2");
+		}
+	}
+}

Lists.cs

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+//C#/Tutorials/HelloWorld.cs
+//Matthew Ellison
+// Created: 07-29-20
+//Modified: 07-29-20
+//This shows some basic list operations
+
+
+using System;
+
+
+namespace mee{
+	public class Lists{
+		public static Main(string[] args){
+			List<string> names = new List<string> { "Matthew", "Ana", "Felipe", "Maria", "Bill"};
+			names.Remove("Ana");
+			names.Add("Felipe");
+			foreach(string name in names){
+				Console.WriteLine($"{name}");
+			}
+			int location = names.IndexOf("Felipe");
+			Console.WriteLine($"location = {location}");
+			location = names.IndexOf("Bob");
+			Console.WriteLine($"location = {location}");
+			Console.WriteLine($"size = {names.Count}");
+		}
+	}
+}

Numbers.cs

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+//C#/Tutorials/Numbers.cs
+//Matthew Ellison
+// Created: 07-29-20
+//Modified: 07-29-20
+//This is a simple hello world program
+
+
+using System;
+
+
+namespace mee{
+	public class Numbers{
+		public static void Main(string[] args){
+			int i1 = 1;
+			int i2 = 2;
+			int i3 = 3;
+			int div = i3/i2;
+			Console.WriteLine($"3/2i = {div}\n");
+
+
+			float f1 = 1.0F;
+			float f3 = 3.0F;
+			float fDiv = f1/f3;
+
+			double a = 1.0;
+			double b = 3.0;
+			double c = a / b;
+
+			//Decimal has a smaller range, but a greater precision than double
+			decimal d = 1.0M;
+			decimal e = 3.0M;
+			decimal f = d / e;
+
+			Console.WriteLine($"Float: {Single.MinValue} - {Single.MaxValue}");
+			Console.WriteLine($"Double: {Double.MinValue} - {Double.MaxValue}");
+			Console.WriteLine($"Decimal: {Decimal.MinValue} - {Decimal.MaxValue}");
+			Console.WriteLine($"1/3F = {fDiv}");
+			Console.WriteLine($"1/3D = {c}");
+			Console.WriteLine($"1/3M = {f}\n");
+			double answer = Math.Pow(2.50, 2) * Math.PI;
+			Console.WriteLine($"area = {answer}");
+		}
+	}
+}

StringManipulation.cs

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+//C#/Tutorials/StringManipulation.cs
+//Matthew Ellison
+// Created: 07-29-20
+//Modified: 07-29-20
+//This has some simple string manipulation examples
+
+
+using System;
+
+
+namespace mee{
+	public class StringManipulation{
+		public static void Main(string[] args){
+			string greeting = "     Hello World     ";
+			Console.WriteLine($"[{greeting}]");
+			string trimmedGreeting = "";
+			//trimmedGreeting = greeting.TrimStart();
+			Console.WriteLine($"[{trimmedGreeting}]");
+			//trimmedGreeting = greeting.TrimEnd();
+			Console.WriteLine($"[{trimmedGreeting}]");
+			trimmedGreeting = greeting.Trim();
+			Console.WriteLine($"[{trimmedGreeting}]");
+
+			//Find
+			Console.WriteLine("\nFind:");
+			string songLyrics = "You say goodbye, and I say hello";
+			Console.WriteLine(songLyrics.Contains("goodbye"));
+			Console.WriteLine(songLyrics.Contains("greetings"));
+			Console.WriteLine(songLyrics.EndsWith("hello"));
+			Console.WriteLine(songLyrics.EndsWith("goodbye"));
+
+			//Find and replace
+			Console.WriteLine("\nFind and Replace:");
+			Console.WriteLine(greeting.Trim());
+			string newGreeting = greeting.Replace("Hello", "Greetings").Trim();
+			Console.WriteLine(newGreeting);
+			Console.WriteLine(newGreeting.ToLower());
+			Console.WriteLine(newGreeting.ToUpper());
+		}
+	}
+}