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pirple-authorpirple-author
committedApr 17, 2020
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0 parents  commit 1896df7

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Diff for: ‎.gitignore

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# OS generated files
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.DS_Store
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.DS_Store?
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._*
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.Spotlight-V100
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.Trashes
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Icon?
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ehthumbs.db
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Thumbs.db

Diff for: ‎Arrays and Strings.cs

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//Rextester.Program.Main is the entry point for your code. Don't change it.
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//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text.RegularExpressions;
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namespace Rextester
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{
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public class Program
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{
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public static void Main(string[] args)
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{
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//Single Dimensional Array
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//a reference type that can store multiple values
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//can be accessed through indexing
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//declaring it
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int[] myArray;
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//initiating
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//as we declare it
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int[] myNewArray = new int[10]; //0-9 used to access
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//indexes start at 0
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//after declaring
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myArray = new int[5]; //0-4
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myArray[0] = 234;
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myArray[1] = 5;
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myArray[2] = 6;
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//myArray[5] = 9; DO NOT DO
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Console.WriteLine(myArray[0]);
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//strings, chars, bool...whatever type can be stored in an array
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char[] myCharArray = new char[5];
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myCharArray[0] = 'h';
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myCharArray[1] = 'e';
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myCharArray[2] = 'l';
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myCharArray[3] = 'l';
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myCharArray[4] = 'o';
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for(int i = 0; i < 5; i++)
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{
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Console.WriteLine(myCharArray[i]);
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}
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//Strings
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//strings are an array of characters
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//we can access through indexing but cannot change them
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string myString = "hello";
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Console.WriteLine("The last letter of Hello is: " + myString[4]);
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//BAD example
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// DO NOT DO! myString[0] = 'Y';
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}
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}
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}

Diff for: ‎Classes.cs

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//Rextester.Program.Main is the entry point for your code. Don't change it.
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//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text.RegularExpressions;
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namespace Rextester
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{
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//what are classes?
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//blueprints to creating an object
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//they allow the user to create their own type as objects
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public class Monster
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{
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//what can a class contain
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//data members - constants/variables
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//methods/functions
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//public class - can be accessed anywhere on this project
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//public data members/methods- can be accessed anywhere where the class
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//was instantiated
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public string name_;
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public int size_;
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public const int legs_ = 2;
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//private data members/methods - can ONLY be accessed in the class
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private int scare_;
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//static data members/methods- apply to the entire class rather than
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//an instance of it
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public static int nMonsters_;
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//default constructor -intiated all values
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public Monster()
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{
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name_ = "default";
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size_ = 20;
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scare_ = 10;
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nMonsters_++; //increment number of monsters
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}
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//constructors
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public Monster(string name, int size, int scare)
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{
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name_ = name;
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size_ = size;
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scare_ = scare;
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nMonsters_++;
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}
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//methods
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public void print()
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{
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Console.WriteLine("Monsters name: " + name_);
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Console.WriteLine("Monsters size: " + size_);
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Console.WriteLine("Monsters scare: " + scare_);
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}
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}
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public class Program
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{
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public static void Main(string[] args)
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{
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Monster Dinosour = new Monster();
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//public members
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Console.WriteLine(Dinosour.name_);
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//can be changed
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Dinosour.name_ = "Rex";
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Console.WriteLine(Dinosour.name_);
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//change a const cannot be changed
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// exmaple -- Dinosour.legs_ = 3;
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//private members cannot be accessed here
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// example -- Console.WriteLine(Dinosour.scare_);
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Console.WriteLine(Monster.nMonsters_);
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//using non-default-constructor
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Monster Dragon = new Monster("Drako", 30, 25);
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Console.WriteLine(Dragon.name_);
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//static check
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Console.WriteLine(Monster.nMonsters_);
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Monster Zombie = new Monster("Zombie", 6, 8);
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//call print
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Zombie.print();
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Dragon.print();
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Dinosour.print();
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Console.WriteLine(Monster.nMonsters_);
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}
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}
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}

Diff for: ‎Date And Time.cs

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//Rextester.Program.Main is the entry point for your code. Don't change it.
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//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text.RegularExpressions;
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namespace Rextester
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{
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public class Program
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{
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public static void Main(string[] args)
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{
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//What is DateTime
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//a class that gives us access to date and time
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DateTime myDate = DateTime.Now;
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DateTime mySecondDate = new DateTime(2000 ,12, 24);
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//.ToString()
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Console.WriteLine(myDate.ToString());
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//.ToShortDateString()
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Console.WriteLine(myDate.ToShortDateString());
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//.ToShortTimeString()
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Console.WriteLine(myDate.ToShortTimeString());
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//.ToLongDateString()
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Console.WriteLine(myDate.ToLongDateString());
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//.ToLongTimeString()
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Console.WriteLine(myDate.ToLongTimeString());
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//mathematical functions- add and subtracts
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Console.WriteLine(myDate.AddYears(5).ToShortDateString());
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//subtract hours
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Console.WriteLine(myDate.AddHours(-6).ToLongTimeString());
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//access
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//.month , .day .hours...so on
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Console.WriteLine(myDate.Month.ToString());
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//Convers trings to DateTime
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//Parse
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DateTime testDate = DateTime.Parse("2000/12/24");
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Console.WriteLine(testDate.ToString());
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//TimeSpan
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//Allows us to see what the time difference is between two dates
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//use Subtract
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//getting difference bettween today and testDate
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TimeSpan daysPassed = DateTime.Now.Subtract(testDate);
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Console.WriteLine(daysPassed.TotalDays);
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}
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}
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}

Diff for: ‎Directories And Paths.cs

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.IO;
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//System.IO allows to read and write files and data streams
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//anything that has to do with files required system.IO
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namespace Test1
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{
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class Program
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{
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static void Main(string[] args)
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{
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//USE The File Class
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string path = @"C:\temp\testText.txt";
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string path2 = @"C:\temp\text.txt";
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//File.Exists checks if there is a file of such name in such directory
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if (File.Exists(path))
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{
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//File.Delete(path) deletes such file from the directory
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File.Delete(path);
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}
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//File.WriteAllText()
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//creates the file, allows us to write to it and then closes the file
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//if the file exists it will replace it
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File.WriteAllText(path, "Hello!");
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//File.WriteAllLines()
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//creates the file, allows us to write 1 or more lines and then closes the file
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//replaces existing files
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File.WriteAllLines(path2, new string[] { "Hello!", "This is kind of neat!" });
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//editing the files -Appending to the files
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//File.AppendAllText()
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//opens file, appends to it and then closes it
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File.AppendAllText(path, " How's it going?");
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//reading the file
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//File.ReadAllTexts returns a string
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string contents = File.ReadAllText(path2);
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Console.WriteLine("Contents is:" + contents);
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Console.WriteLine(File.ReadAllText(path));
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//Direcotory - Folders
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string dirPath = @"C:\temp\newDirectory";
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//Cannot exists
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if (Directory.Exists(dirPath))
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{
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//Deleting
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//two ways
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//1 IF the directory is Empty
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//Directory.Delete(newPath);
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//2 IF the directory ISNT empty
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Directory.Delete(dirPath, true);
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}
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Directory.CreateDirectory(dirPath);
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//Path Class
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//allow us to make changes to the string path that lead to directories or filess
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string newPath = @"C:\temp\newDirectory\ourText.txt";
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File.WriteAllText(newPath, "WOW this is really cool!");
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//gets directory name
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string dirName = Path.GetDirectoryName(newPath);
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Console.WriteLine("Directory Name: " + dirName);
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//gets file extension
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string fileExt = Path.GetExtension(newPath);
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Console.WriteLine("File Extension: " + fileExt);
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//gets File Name
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string fileName = Path.GetFileName(newPath);
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Console.WriteLine("File Name: " + fileName);
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//gets file name without extention
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string file_woExt = Path.GetFileNameWithoutExtension(newPath);
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Console.WriteLine("File Name/No Extension: " + file_woExt);
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//get files root directory
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string root = Path.GetPathRoot(newPath);
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Console.WriteLine("Root Directory: " + root);
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//change file extension
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string newFileRes = Path.ChangeExtension(newPath, ".new");
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Console.WriteLine("new File: " + newFileRes);
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Console.ReadKey();
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}
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}
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}

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