Enums

EnumsLinq/Enums/Enums.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
+  </PropertyGroup>
+
+</Project>

EnumsLinq/Enums/Program.cs

@@ -0,0 +1,34 @@
+using System;
+
+namespace Enums
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            DaysWithNumbers myBirthday = DaysWithNumbers.Friday;
+            Console.WriteLine("Hello World!");
+            // foreach (var item in Enum.GetValues(typeof(Days)))
+            // {
+            //     System.Console.WriteLine(item);
+            // }
+            foreach (var item in Enum.GetValues(typeof(DaysWithNumbers)))
+            {
+                System.Console.WriteLine(item);
+            }
+            if (myBirthday == DaysWithNumbers.Friday)
+            {
+                System.Console.WriteLine();
+            }
+
+        }
+        enum Days
+        {
+            Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
+        }
+        enum DaysWithNumbers
+        {
+            Monday = 1, Tuesday = 2, Wednesday = 3, Thursday = 4, Friday = 5, Saturday = 6, Sunday = 7
+        }
+    }
+}

EnumsLinq/EnumsPractice/EnumsPractice.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
+  </PropertyGroup>
+
+</Project>

EnumsLinq/EnumsPractice/Program.cs

@@ -0,0 +1,32 @@
+using System;
+
+namespace EnumsPractice
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Hello World!");
+            foreach (var item in Enum.GetValues(typeof(Months)))
+            {
+                System.Console.WriteLine(item);
+            }
+        }
+        enum Months
+        {
+            January, February, March, April, May, June, July, August, September, October, November, December
+        }
+        Point point1 = new Point(0, 1);
+        Point point2 = new Point(2, 2);
+        public struct Point
+        {
+            public int X { get; set; }
+            public int Y { get; set; }
+            public Point(int x, int y)
+            {
+                this.X = x;
+                this.Y = y;
+            }
+        }
+    }
+}

EnumsLinq/Linq/Linq.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
+  </PropertyGroup>
+
+</Project>

EnumsLinq/Linq/Program.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace StudentList
+{
+    public class Program
+    {
+        public static void Main()
+        {
+            List<Student> students = new List<Student>();
+
+            students.Add(new Student("Chris", "123-456-7891", "123 Delany", -2990));
+            students.Add(new Student("Kevin", "512-222-2222", "435 Carolyn", -2500));
+            students.Add(new Student("Victoria", "512-827-8498", "701 Brazos St", 0));
+            students.Add(new Student("Luke", "555-555-5555", "451 Brody Ln", -500));
+
+            //your code here
+            IEnumerable<Student> negativeBalance = from currentStudent in students
+                                                   where currentStudent.Balance < 0
+                                                   select currentStudent;
+
+            Console.WriteLine("Students with a negative balance:");
+            foreach (Student currentStudent in negativeBalance)
+            {
+                Console.WriteLine(currentStudent.Name);
+            }
+
+        }
+    }
+
+}
+
+public class Student
+{
+    public string Name { get; set; }
+    public string Phone { get; set; }
+    public string Address { get; set; }
+    public int Balance { get; set; }
+
+    public Student(string name, string phone, string address, int balance)
+    {
+        Name = name;
+        Phone = phone;
+        Address = address;
+        Balance = balance;
+    }
+}

Linq/Linq.cs

@@ -1,12 +1,25 @@
 using System;
+using System.Linq;
 
 namespace Linq
 {
     class Program
     {
         static void Main(string[] args)
         {
-            Console.WriteLine("Hello World!");
+
+            var source = new int[] { 1, 2 };
+            var results =
+            from i in source
+            select i;
+
+            int total = source.Where(x => true).Select(Square).Sum();
+            Console.WriteLine(total);
+
+        }
+        public static int Square(int value)
+        {
+            return value * value;
         }
     }
 }