first commit

listas3/listas3.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+</Project>

listas3/main.cs

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+using System;
+using exercicios;
+using System.Reflection;
+using System.Linq;
+
+namespace principal
+{
+	class Programa
+	{
+		// Made by F. Raszeja
+		static bool ParseStr(string val)
+		{
+			if (!val.Any(x=> char.IsLetter(x))){
+				int tmp = int.Parse(val);
+				if (tmp != 0 && tmp <= 8) return true;
+			}
+			return false;
+		}
+		
+		static void Main(string[] args)
+        {
+            string sel = "";
+			do{
+				Console.Clear();
+				
+				Console.BackgroundColor = ConsoleColor.White;
+				Console.ForegroundColor = ConsoleColor.Black;
+				Console.WriteLine("Third Assignment List - 17/09/2020");
+				Console.ResetColor();
+				
+				Console.WriteLine("\n1-8\tExamples 1-8");
+				Console.WriteLine("\texit\tQuit to Desktop");
+				
+				Console.Write("--> ");
+				sel = Console.ReadLine();
+				
+				if(sel != "exit" && ParseStr(sel)){
+					Type typesPrograma = Type.GetType("exercicios.Exercicio"+sel);
+					MethodInfo aInvocar = typesPrograma.GetMethod(
+						"Init", BindingFlags.Static | BindingFlags.Public);
+					aInvocar.Invoke(null, null);
+				}
+				Console.WriteLine("\nPress any key to continue...");
+				Console.ReadKey();
+			}
+			while(sel.ToLower() != "exit");
+        }
+	}
+}

listas3/source/exercicio1.cs

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+using System;
+
+namespace exercicios
+{
+	class Exercicio1{
+		public static void Init()
+		{
+			string nome;
+			
+			Console.WriteLine("Write a Name");
+			nome = Console.ReadLine();
+			
+			double media = lerNota();
+			
+			Console.WriteLine("Student: {0}, Avg. Grade: {1:N2}",nome,media);
+			Console.WriteLine(media > 7 ? "PASS" : "FAIL");
+		}
+		static double lerNota()
+		{
+			
+			float n1,n2;
+			
+			Console.WriteLine("Insert the grades (2)...");
+			n1 = float.Parse(Console.ReadLine());
+			n2 = float.Parse(Console.ReadLine());
+			
+			return calcularMedia(n1,n2);
+			
+		}
+			
+		static float calcularMedia(float i, float i2)
+		{
+			return ((i+i2)/2);
+		}
+	}
+}

listas3/source/exercicio2.cs

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+using System;
+
+namespace exercicios
+{
+	class Exercicio2{
+		public static void Init()
+		{
+			int n;
+			Console.WriteLine("Insert a value");
+			n = int.Parse(Console.ReadLine());
+			
+			Console.WriteLine("{0}! = {1}",n,calcularFatorial(n));
+			
+		}
+		static int calcularFatorial(int n)
+		{
+			int fat = 1;
+			
+			for(int i = 1; i <= n; i++)
+			{
+				fat *= i;
+			}
+			
+			return fat;
+		}
+	}
+}

listas3/source/exercicio3.cs

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+using System;
+
+namespace exercicios
+{
+	public class Exercicio3{
+		public static void Init()
+		{
+			double i,i2;
+			Console.WriteLine("Insert the values (2)...");
+			i = double.Parse(Console.ReadLine());
+			i2 = double.Parse(Console.ReadLine());
+			diferenca(i,i2);
+		}
+		static void diferenca(double n, double n2)
+		{
+			double val = 0;
+			val = n > n2 ? n - n2 : n2 - n;
+			
+			Console.WriteLine("The result being zero means the numbers are equal.");
+			Console.WriteLine("The difference between {0:N2} and {1:N2} is {2:N2}",
+			n,n2,val);
+		}
+	}
+}

listas3/source/exercicio4.cs

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+using System;
+
+namespace exercicios
+{
+	class Exercicio4{
+			public static void Init()
+			{
+				double a,b,c;
+				
+				Console.WriteLine("Insert the triangle's dimensions (A,B,C)");
+				
+				a = double.Parse(Console.ReadLine());
+				b = double.Parse(Console.ReadLine());
+				c = double.Parse(Console.ReadLine());
+				
+				
+				
+				if(a < (b+c) && b < (a+c) && c < (a+b))
+				{
+					Console.WriteLine(TriEquil(a,b,c) == true ?
+						"Equilateral" : TriIso(a,b,c) == true ?
+						"Isosceles" : TriEsc(a,b,c) == true ?
+						"Scalene" : "N. A.");
+				}
+				else
+				{
+					Console.WriteLine("Not a triangle.");
+				}
+				
+			}
+			static bool TriEquil(double a, double b, double c)
+			{
+				if (a == b && b == c)
+				{
+					return true;
+				}
+				else
+				{
+					return false;
+				}
+			}
+			static bool TriIso(double a, double b, double c)
+			{
+				if (a == b || a == c || b == c)
+				{
+					return true;
+				}
+				else
+				{
+					return false;
+				}
+			}
+			static bool TriEsc(double a, double b, double c)
+			{
+				
+				if((TriIso(a,b,c) && TriEquil(a,b,c)) == false)
+				{
+					return true;
+				}
+				else {return false;}
+			}
+	}
+}

listas3/source/exercicio5.cs

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+using System;
+using System.Reflection;
+
+namespace exercicios
+{
+	class Exercicio5
+		{
+			public static void Init()
+			{
+				string sel = "";
+				
+				Console.WriteLine("Select an operation:"+
+									"\n1 - Sum"+
+									"\n2 - Subtract"+
+									"\n3 - Divide"+
+									"\n4 - Multiply"+
+									"\n5 - Div. Remains"+
+									"\n6 - Double"+
+									"\n7 - Squared"+
+									"\n8 - Cubed"+
+									"\n9 - Square Root"+
+									"\n0 - Exit");
+									
+				sel = Console.ReadLine();
+				if(sel != "0"){
+					Console.WriteLine("Insert a value and press Enter (2)");
+					Type typesPrograma = typeof(Exercicio5);
+					MethodInfo aInvocar = typesPrograma.GetMethod(
+						"op"+sel, BindingFlags.Static | BindingFlags.NonPublic);
+					aInvocar.Invoke(null, null);
+				}
+			}
+			static void op1()
+			{
+				int i, i2;
+				i = int.Parse(Console.ReadLine());
+				i2 = int.Parse(Console.ReadLine());
+				
+				Console.WriteLine("{0} + {1} = {2}",i,i2,i+i2);
+			}
+			static void op2()
+			{
+				int i, i2;
+				i = int.Parse(Console.ReadLine());
+				i2 = int.Parse(Console.ReadLine());
+				
+				Console.WriteLine("{0} - {1} = {2}",i,i2,i-i2);
+			}
+			static void op3()
+			{
+				int i, i2;
+				i = int.Parse(Console.ReadLine());
+				i2 = int.Parse(Console.ReadLine());
+				
+				Console.WriteLine("{0} / {1} = {2:N2}",i,i2,(double)i/i2);
+			}
+			static void op4()
+			{
+				int i, i2;
+				i = int.Parse(Console.ReadLine());
+				i2 = int.Parse(Console.ReadLine());
+				
+				Console.WriteLine("{0} * {1} = {2}",i,i2,i*i2);
+			}
+			static void op5()
+			{
+				int i, i2;
+				i = int.Parse(Console.ReadLine());
+				i2 = int.Parse(Console.ReadLine());
+				
+				Console.WriteLine("{0} % {1} = {2}",i,i2,(double)i%i2);
+			}
+			static void op6()
+			{
+				int i;
+				i = int.Parse(Console.ReadLine());
+				
+				Console.WriteLine("{0}*2 = {1}",i,i*2);
+			}
+			static void op7()
+			{
+				int i;
+				i = int.Parse(Console.ReadLine());
+				
+				Console.WriteLine("{0}^2 = {1}",i,i*i);
+			}
+			static void op8()
+			{
+				int i;
+				i = int.Parse(Console.ReadLine());
+				Console.WriteLine("{0}^3 = {1}",i,i*i*i);
+				
+			}
+			static void op9()
+			{
+				int i;
+				i = int.Parse(Console.ReadLine());
+				
+				Console.WriteLine("Sqrt({0}) = {1}",i,Math.Sqrt(i));
+			}
+			static void op10()
+			{
+				
+			}
+	}
+}

listas3/source/exercicio6.cs

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+using System;
+
+namespace exercicios
+{
+	public class Exercicio6
+		{
+			public static void Init()
+			{
+				string sexo;
+				float i_altura;
+				
+				Console.WriteLine("Biological sex (male/female):");
+				sexo = Console.ReadLine();
+				
+				Console.WriteLine("Height (in meters):");
+				i_altura = float.Parse(Console.ReadLine());
+				
+				Console.WriteLine("\n{0:N2} is the ideal weight for a {1}, with the height of: {2}m",
+						calcularPesoIdeal(i_altura,sexo),sexo,i_altura);
+			}
+			static float calcularPesoIdeal(float i, string s)
+			{
+				switch(s.ToLower())
+				{
+					case "male":
+						return (72.7f*i)-58f;
+					case "female":
+						return (62.1f*i)-44.7f;
+					default:
+						Console.WriteLine("\nWrite a valid value!");
+						break;
+				}
+				return 0;
+			}
+	}
+}

listas3/source/exercicio7.cs

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+using System;
+
+namespace exercicios
+{
+	public class Exercicio7
+		{
+			public static void Init()
+			{
+				float x,y;
+				Console.WriteLine("Write the values for X and Y");
+				x = float.Parse(Console.ReadLine());
+				y = float.Parse(Console.ReadLine());
+				Console.WriteLine("(x{0:N2};y{1:N2}) is in quadrant {2}",
+									x,y,verificaQuadrante(x,y));
+			}
+			static char verificaQuadrante(float x, float y)
+			{
+				if (x > 0)
+				{
+					if(y >= 0)return '1';
+					else if(y < 0)return '4';
+				}
+				else if (x < 0)
+				{
+					if(y >= 0)return '2';
+					else if(y < 0)return '3';
+				}
+				return 'N';
+			}
+	}
+}

listas3/source/exercicios8.cs

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+using System;
+
+namespace exercicios
+{
+	class Exercicio8
+		{
+			public static void Init()
+			{
+				float b,a;
+				Console.WriteLine("Hypotenuse Calculator\nInsert the values for b (triangle base) & a (triangle height).");
+				
+				b = float.Parse(Console.ReadLine());
+				a = float.Parse(Console.ReadLine());
+				
+				Console.WriteLine("\nTriangle base {0}, Height {1}, Hypotenuse {2:N2}",
+									b,
+									a,
+									hipotenusa(a,b));
+			}
+			static float hipotenusa(float b, float a)
+			{
+				return (float)Math.Sqrt((b*b)+(a*a));
+			}
+	}
+}