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Proofread parts of C#

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Boris Verkhovskiy 2022-08-19 11:45:25 -07:00 committed by GitHub
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@ -158,7 +158,7 @@ on a new line! ""Wow!"", the masses cried";
// Arrays - zero indexed
// The array size must be decided upon declaration
// The format for declaring an array is follows:
// The format for declaring an array is
// <datatype>[] <var name> = new <datatype>[<array size>];
int[] intArray = new int[10];
@ -172,7 +172,7 @@ on a new line! ""Wow!"", the masses cried";
// Lists
// Lists are used more frequently than arrays as they are more flexible
// The format for declaring a list is follows:
// The format for declaring a list is
// List<datatype> <var name> = new List<datatype>();
List<int> intList = new List<int>();
List<string> stringList = new List<string>();
@ -182,14 +182,14 @@ on a new line! ""Wow!"", the masses cried";
// Lists don't default to a value;
// A value must be added before accessing the index
intList.Add(1);
Console.WriteLine("intList @ 0: " + intList[0]);
Console.WriteLine("intList at 0: " + intList[0]);
// Others data structures to check out:
// Other data structures to check out:
// Stack/Queue
// Dictionary (an implementation of a hash map)
// HashSet
// Read-only Collections
// Tuple (.Net 4+)
// Tuple (.NET 4+)
///////////////////////////////////////
// Operators
@ -222,20 +222,20 @@ on a new line! ""Wow!"", the masses cried";
| Bitwise inclusive OR
*/
// Incrementations
// Incrementing
int i = 0;
Console.WriteLine("\n->Inc/Dec-rementation");
Console.WriteLine(i++); //Prints "0", i = 1. Post-Incrementation
Console.WriteLine(++i); //Prints "2", i = 2. Pre-Incrementation
Console.WriteLine(i--); //Prints "2", i = 1. Post-Decrementation
Console.WriteLine(--i); //Prints "0", i = 0. Pre-Decrementation
Console.WriteLine("\n->Inc/Dec-rement");
Console.WriteLine(i++); //Prints "0", i = 1. Post-Increment
Console.WriteLine(++i); //Prints "2", i = 2. Pre-Increment
Console.WriteLine(i--); //Prints "2", i = 1. Post-Decrement
Console.WriteLine(--i); //Prints "0", i = 0. Pre-Decrement
///////////////////////////////////////
// Control Structures
///////////////////////////////////////
Console.WriteLine("\n->Control Structures");
// If statements are c-like
// If statements are C-like
int j = 10;
if (j == 10)
{
@ -288,7 +288,7 @@ on a new line! ""Wow!"", the masses cried";
// For Each Loop
// foreach loop structure => foreach(<iteratorType> <iteratorName> in <enumerable>)
// The foreach loop loops over any object implementing IEnumerable or IEnumerable<T>
// All the collection types (Array, List, Dictionary...) in the .Net framework
// All the collection types (Array, List, Dictionary...) in the .NET framework
// implement one or both of these interfaces.
// (The ToCharArray() could be removed, because a string also implements IEnumerable)
foreach (char character in "Hello World".ToCharArray())
@ -297,7 +297,7 @@ on a new line! ""Wow!"", the masses cried";
}
// Switch Case
// A switch works with the byte, short, char, and int data types.
// A switch works with byte, short, char, and int data types.
// It also works with enumerated types (discussed in Enum Types),
// the String class, and a few special classes that wrap
// primitive types: Character, Byte, Short, and Integer.
@ -316,7 +316,7 @@ on a new line! ""Wow!"", the masses cried";
break;
// You can assign more than one case to an action
// But you can't add an action without a break before another case
// (if you want to do this, you would have to explicitly add a goto case x
// (if you want to do this, you would have to explicitly add a goto case x)
case 6:
case 7:
case 8:
@ -337,14 +337,14 @@ on a new line! ""Wow!"", the masses cried";
// this will throw a FormatException on failure
int.Parse("123"); // returns an integer version of "123"
// try parse will default to type default on failure
// in this case: 0
// TryParse will default to the type's default value on failure
// in this case 0
int tryInt;
if (int.TryParse("123", out tryInt)) // Function is boolean
Console.WriteLine(tryInt); // 123
// Convert Integer To String
// Convert class has a number of methods to facilitate conversions
// The Convert class has a number of methods to facilitate conversions
// String to int
@ -388,7 +388,7 @@ on a new line! ""Wow!"", the masses cried";
Console.Read();
} // End main method
// Available in C# 9 and later, this is basically a syntactic sugar for a class. Records are immutable*.
// Available in C# 9 and later, this is basically syntactic sugar for a class. Records are immutable*.
public record ARecord(string Csharp);
// CONSOLE ENTRY - A console application must have a main method as an entry point
@ -428,7 +428,7 @@ on a new line! ""Wow!"", the masses cried";
// GENERICS
// The classes for TKey and TValue is specified by the user calling this function.
// This method emulates the SetDefault of Python
// This method emulates Python's dict.setdefault()
public static TValue SetDefault<TKey, TValue>(
IDictionary<TKey, TValue> dictionary,
TKey key,