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https://github.com/markjprice/cs11dotnet7.git
synced 2025-12-06 05:32:03 +01:00
Initial commit
This commit is contained in:
Mark J Price
parent
d5bde3c775
commit
5fb8e6929b
15
vs4win/Chapter02/Arguments/Arguments.csproj
Normal file
15
vs4win/Chapter02/Arguments/Arguments.csproj
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Include="System.Console" Static="true" />
|
||||
</ItemGroup>
|
||||
|
||||
|
||||
</Project>
|
||||
32
vs4win/Chapter02/Arguments/Program.cs
Normal file
32
vs4win/Chapter02/Arguments/Program.cs
Normal file
|
|
@ -0,0 +1,32 @@
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|||
WriteLine($"There are {args.Length} arguments.");
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||||
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foreach (string arg in args)
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||||
{
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||||
WriteLine(arg);
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||||
}
|
||||
|
||||
if (args.Length < 3)
|
||||
{
|
||||
WriteLine("You must specify two colors and cursor size, e.g.");
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||||
WriteLine("dotnet run red yellow 50");
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||||
return; // stop running
|
||||
}
|
||||
|
||||
ForegroundColor = (ConsoleColor)Enum.Parse(
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enumType: typeof(ConsoleColor),
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||||
value: args[0],
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||||
ignoreCase: true);
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||||
|
||||
BackgroundColor = (ConsoleColor)Enum.Parse(
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enumType: typeof(ConsoleColor),
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value: args[1],
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||||
ignoreCase: true);
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||||
|
||||
try
|
||||
{
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||||
CursorSize = int.Parse(args[2]);
|
||||
}
|
||||
catch (PlatformNotSupportedException)
|
||||
{
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||||
WriteLine("The current platform does not support changing the size of the cursor.");
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}
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
{
|
||||
"profiles": {
|
||||
"Arguments": {
|
||||
"commandName": "Project",
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||||
"commandLineArgs": "red yellow 50"
|
||||
}
|
||||
}
|
||||
}
|
||||
10
vs4win/Chapter02/Arrays/Arrays.csproj
Normal file
10
vs4win/Chapter02/Arrays/Arrays.csproj
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
</Project>
|
||||
70
vs4win/Chapter02/Arrays/Program.cs
Normal file
70
vs4win/Chapter02/Arrays/Program.cs
Normal file
|
|
@ -0,0 +1,70 @@
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|||
string[] names; // can reference any size array of strings
|
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|
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// allocating memory for four strings in an array
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names = new string[4];
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|
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// storing items at index positions
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names[0] = "Kate";
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names[1] = "Jack";
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names[2] = "Rebecca";
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names[3] = "Tom";
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string[] names2 = new[] { "Kate", "Jack", "Rebecca", "Tom" };
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// looping through the names
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for (int i = 0; i < names2.Length; i++)
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{
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// output the item at index position i
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Console.WriteLine(names2[i]);
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}
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string[,] grid1 = new[,] // two dimensions
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||||
{
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{ "Alpha", "Beta", "Gamma", "Delta" },
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{ "Anne", "Ben", "Charlie", "Doug" },
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{ "Aardvark", "Bear", "Cat", "Dog" }
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||||
};
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||||
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||||
Console.WriteLine($"Lower bound of the first dimension is: {grid1.GetLowerBound(0)}");
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||||
Console.WriteLine($"Upper bound of the first dimension is: {grid1.GetUpperBound(0)}");
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||||
Console.WriteLine($"Lower bound of the second dimension is: {grid1.GetLowerBound(1)}");
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||||
Console.WriteLine($"Upper bound of the second dimension is: {grid1.GetUpperBound(1)}");
|
||||
|
||||
for (int row = 0; row <= grid1.GetUpperBound(0); row++)
|
||||
{
|
||||
for (int col = 0; col <= grid1.GetUpperBound(1); col++)
|
||||
{
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||||
Console.WriteLine($"Row {row}, Column {col}: {grid1[row, col]}");
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||||
}
|
||||
}
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||||
|
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// alternative syntax
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string[,] grid2 = new string[3,4]; // allocate memory
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||||
grid2[0, 0] = "Alpha"; // assign string values
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||||
// and so on
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||||
grid2[2, 3] = "Dog";
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||||
|
||||
string[][] jagged = new[] // array of string arrays
|
||||
{
|
||||
new[] { "Alpha", "Beta", "Gamma" },
|
||||
new[] { "Anne", "Ben", "Charlie", "Doug" },
|
||||
new[] { "Aardvark", "Bear" }
|
||||
};
|
||||
|
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Console.WriteLine("Upper bound of array of arrays is: {0}",
|
||||
jagged.GetUpperBound(0));
|
||||
|
||||
for (int array = 0; array <= jagged.GetUpperBound(0); array++)
|
||||
{
|
||||
Console.WriteLine("Upper bound of array {0} is: {1}",
|
||||
arg0: array,
|
||||
arg1: jagged[array].GetUpperBound(0));
|
||||
}
|
||||
|
||||
for (int row = 0; row <= jagged.GetUpperBound(0); row++)
|
||||
{
|
||||
for (int col = 0; col <= jagged[row].GetUpperBound(0); col++)
|
||||
{
|
||||
Console.WriteLine($"Row {row}, Column {col}: {jagged[row][col]}");
|
||||
}
|
||||
}
|
||||
15
vs4win/Chapter02/AsyncConsole/AsyncConsole.csproj
Normal file
15
vs4win/Chapter02/AsyncConsole/AsyncConsole.csproj
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Include="System.Console" Static="true" />
|
||||
</ItemGroup>
|
||||
|
||||
|
||||
</Project>
|
||||
7
vs4win/Chapter02/AsyncConsole/Program.cs
Normal file
7
vs4win/Chapter02/AsyncConsole/Program.cs
Normal file
|
|
@ -0,0 +1,7 @@
|
|||
HttpClient client = new();
|
||||
|
||||
HttpResponseMessage response =
|
||||
await client.GetAsync("http://www.apple.com/");
|
||||
|
||||
WriteLine("Apple's home page has {0:N0} bytes.",
|
||||
response.Content.Headers.ContentLength);
|
||||
61
vs4win/Chapter02/Chapter02.sln
Normal file
61
vs4win/Chapter02/Chapter02.sln
Normal file
|
|
@ -0,0 +1,61 @@
|
|||
|
||||
Microsoft Visual Studio Solution File, Format Version 12.00
|
||||
# Visual Studio Version 17
|
||||
VisualStudioVersion = 17.0.32126.317
|
||||
MinimumVisualStudioVersion = 10.0.40219.1
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Vocabulary", "Vocabulary\Vocabulary.csproj", "{0CE59DD7-3883-4367-B69E-8C72A4347291}"
|
||||
EndProject
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Numbers", "Numbers\Numbers.csproj", "{830F8E78-582E-48E5-97D3-937218DBCAA9}"
|
||||
EndProject
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Variables", "Variables\Variables.csproj", "{ACF3C314-6997-4613-93ED-B657713DB931}"
|
||||
EndProject
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Arrays", "Arrays\Arrays.csproj", "{392E45A4-7C81-4435-A0C5-B66D7CF27B78}"
|
||||
EndProject
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Formatting", "Formatting\Formatting.csproj", "{71E2E795-978C-4BD8-8DD7-C6B1FEC04818}"
|
||||
EndProject
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Arguments", "Arguments\Arguments.csproj", "{2293F4A7-AC7E-4A9D-BEAB-A6182D3D66EC}"
|
||||
EndProject
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncConsole", "AsyncConsole\AsyncConsole.csproj", "{459F1756-610C-4C65-9335-C269DE60AFD3}"
|
||||
EndProject
|
||||
Global
|
||||
GlobalSection(SolutionConfigurationPlatforms) = preSolution
|
||||
Debug|Any CPU = Debug|Any CPU
|
||||
Release|Any CPU = Release|Any CPU
|
||||
EndGlobalSection
|
||||
GlobalSection(ProjectConfigurationPlatforms) = postSolution
|
||||
{0CE59DD7-3883-4367-B69E-8C72A4347291}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{0CE59DD7-3883-4367-B69E-8C72A4347291}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{0CE59DD7-3883-4367-B69E-8C72A4347291}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{0CE59DD7-3883-4367-B69E-8C72A4347291}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
{830F8E78-582E-48E5-97D3-937218DBCAA9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{830F8E78-582E-48E5-97D3-937218DBCAA9}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{830F8E78-582E-48E5-97D3-937218DBCAA9}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{830F8E78-582E-48E5-97D3-937218DBCAA9}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
{ACF3C314-6997-4613-93ED-B657713DB931}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{ACF3C314-6997-4613-93ED-B657713DB931}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{ACF3C314-6997-4613-93ED-B657713DB931}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{ACF3C314-6997-4613-93ED-B657713DB931}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
{392E45A4-7C81-4435-A0C5-B66D7CF27B78}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{392E45A4-7C81-4435-A0C5-B66D7CF27B78}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{392E45A4-7C81-4435-A0C5-B66D7CF27B78}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{392E45A4-7C81-4435-A0C5-B66D7CF27B78}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
{71E2E795-978C-4BD8-8DD7-C6B1FEC04818}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{71E2E795-978C-4BD8-8DD7-C6B1FEC04818}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{71E2E795-978C-4BD8-8DD7-C6B1FEC04818}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{71E2E795-978C-4BD8-8DD7-C6B1FEC04818}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
{2293F4A7-AC7E-4A9D-BEAB-A6182D3D66EC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{2293F4A7-AC7E-4A9D-BEAB-A6182D3D66EC}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{2293F4A7-AC7E-4A9D-BEAB-A6182D3D66EC}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{2293F4A7-AC7E-4A9D-BEAB-A6182D3D66EC}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
{459F1756-610C-4C65-9335-C269DE60AFD3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{459F1756-610C-4C65-9335-C269DE60AFD3}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{459F1756-610C-4C65-9335-C269DE60AFD3}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{459F1756-610C-4C65-9335-C269DE60AFD3}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
EndGlobalSection
|
||||
GlobalSection(SolutionProperties) = preSolution
|
||||
HideSolutionNode = FALSE
|
||||
EndGlobalSection
|
||||
GlobalSection(ExtensibilityGlobals) = postSolution
|
||||
SolutionGuid = {E88CEC15-5E2F-4B39-9286-76AE13BEF040}
|
||||
EndGlobalSection
|
||||
EndGlobal
|
||||
14
vs4win/Chapter02/Formatting/Formatting.csproj
Normal file
14
vs4win/Chapter02/Formatting/Formatting.csproj
Normal file
|
|
@ -0,0 +1,14 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Include="System.Console" Static="true" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
35
vs4win/Chapter02/Formatting/Program.cs
Normal file
35
vs4win/Chapter02/Formatting/Program.cs
Normal file
|
|
@ -0,0 +1,35 @@
|
|||
using static System.Console;
|
||||
|
||||
int numberOfApples = 12;
|
||||
decimal pricePerApple = 0.35M;
|
||||
|
||||
WriteLine(
|
||||
format: "{0} apples costs {1:C}",
|
||||
arg0: numberOfApples,
|
||||
arg1: pricePerApple * numberOfApples);
|
||||
|
||||
string formatted = string.Format(
|
||||
format: "{0} apples costs {1:C}",
|
||||
arg0: numberOfApples,
|
||||
arg1: pricePerApple * numberOfApples);
|
||||
|
||||
//WriteToFile(formatted); // writes the string into a file
|
||||
|
||||
WriteLine($"{numberOfApples} apples costs {pricePerApple * numberOfApples:C}");
|
||||
|
||||
Write("Type your first name and press ENTER: ");
|
||||
string? firstName = ReadLine(); // nulls are expected
|
||||
|
||||
Write("Type your age and press ENTER: ");
|
||||
string age = ReadLine()!; // null won't be returned
|
||||
|
||||
WriteLine(
|
||||
$"Hello {firstName}, you look good for {age}.");
|
||||
|
||||
Write("Press any key combination: ");
|
||||
ConsoleKeyInfo key = ReadKey();
|
||||
WriteLine();
|
||||
WriteLine("Key: {0}, Char: {1}, Modifiers: {2}",
|
||||
arg0: key.Key,
|
||||
arg1: key.KeyChar,
|
||||
arg2: key.Modifiers);
|
||||
10
vs4win/Chapter02/Numbers/Numbers.csproj
Normal file
10
vs4win/Chapter02/Numbers/Numbers.csproj
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
</Project>
|
||||
52
vs4win/Chapter02/Numbers/Program.cs
Normal file
52
vs4win/Chapter02/Numbers/Program.cs
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
// unsigned integer means positive whole number or 0
|
||||
uint naturalNumber = 23;
|
||||
|
||||
// integer means negative or positive whole number or 0
|
||||
int integerNumber = -23;
|
||||
|
||||
// float means single-precision floating point
|
||||
// F suffix makes it a float literal
|
||||
float realNumber = 2.3F;
|
||||
|
||||
// double means double-precision floating point
|
||||
double anotherRealNumber = 2.3; // double literal
|
||||
|
||||
// three variables that store the number 2 million
|
||||
int decimalNotation = 2_000_000;
|
||||
int binaryNotation = 0b_0001_1110_1000_0100_1000_0000;
|
||||
int hexadecimalNotation = 0x_001E_8480;
|
||||
|
||||
// check the three variables have the same value
|
||||
// both statements output true
|
||||
Console.WriteLine($"{decimalNotation == binaryNotation}");
|
||||
Console.WriteLine(
|
||||
$"{decimalNotation == hexadecimalNotation}");
|
||||
|
||||
Console.WriteLine($"int uses {sizeof(int)} bytes and can store numbers in the range {int.MinValue:N0} to {int.MaxValue:N0}.");
|
||||
Console.WriteLine($"double uses {sizeof(double)} bytes and can store numbers in the range {double.MinValue:N0} to {double.MaxValue:N0}.");
|
||||
Console.WriteLine($"decimal uses {sizeof(decimal)} bytes and can store numbers in the range {decimal.MinValue:N0} to {decimal.MaxValue:N0}.");
|
||||
|
||||
Console.WriteLine("Using doubles:");
|
||||
double a = 0.1;
|
||||
double b = 0.2;
|
||||
if (a + b == 0.3)
|
||||
{
|
||||
Console.WriteLine($"{a} + {b} equals {0.3}");
|
||||
}
|
||||
else
|
||||
{
|
||||
Console.WriteLine($"{a} + {b} does NOT equal {0.3}");
|
||||
}
|
||||
|
||||
Console.WriteLine("Using decimals:");
|
||||
decimal c = 0.1M; // M suffix means a decimal literal value
|
||||
decimal d = 0.2M;
|
||||
|
||||
if (c + d == 0.3M)
|
||||
{
|
||||
Console.WriteLine($"{c} + {d} equals {0.3M}");
|
||||
}
|
||||
else
|
||||
{
|
||||
Console.WriteLine($"{c} + {d} does NOT equal {0.3M}");
|
||||
}
|
||||
51
vs4win/Chapter02/Variables/Program.cs
Normal file
51
vs4win/Chapter02/Variables/Program.cs
Normal file
|
|
@ -0,0 +1,51 @@
|
|||
using System.Xml;
|
||||
|
||||
object height = 1.88; // storing a double in an object
|
||||
object name = "Amir"; // storing a string in an object
|
||||
Console.WriteLine($"{name} is {height} metres tall.");
|
||||
|
||||
//int length1 = name.Length; // gives compile error!
|
||||
int length2 = ((string)name).Length; // tell compiler it is a string
|
||||
Console.WriteLine($"{name} has {length2} characters.");
|
||||
|
||||
// storing a string in a dynamic object
|
||||
// string has a Length property
|
||||
dynamic something = "Ahmed";
|
||||
|
||||
// int does not have a Length property
|
||||
something = 12;
|
||||
// an array of any type has a Length property
|
||||
something = new[] { 3, 5, 7 };
|
||||
|
||||
// this compiles but would throw an exception at run-time
|
||||
// if you later store a data type that does not have a
|
||||
// property named Length
|
||||
Console.WriteLine($"Length is {something.Length}");
|
||||
|
||||
var population = 66_000_000; // 66 million in UK
|
||||
var weight = 1.88; // in kilograms
|
||||
var price = 4.99M; // in pounds sterling
|
||||
var fruit = "Apples"; // strings use double-quotes
|
||||
var letter = 'Z'; // chars use single-quotes
|
||||
var happy = true; // Booleans have value of true or false
|
||||
|
||||
// good use of var because it avoids the repeated type
|
||||
// as shown in the more verbose second statement
|
||||
var xml1 = new XmlDocument(); // C# 3 and later
|
||||
XmlDocument xml2 = new XmlDocument(); // all C# versions
|
||||
|
||||
// bad use of var because we cannot tell the type, so we
|
||||
// should use a specific type declaration as shown in
|
||||
// the second statement
|
||||
var file1 = File.CreateText("something1.txt");
|
||||
StreamWriter file2 = File.CreateText("something2.txt");
|
||||
|
||||
Console.WriteLine($"default(int) = {default(int)}");
|
||||
Console.WriteLine($"default(bool) = {default(bool)}");
|
||||
Console.WriteLine($"default(DateTime) = {default(DateTime)}");
|
||||
Console.WriteLine($"default(string) = {default(string)}");
|
||||
|
||||
int number = 13;
|
||||
Console.WriteLine($"number has been set to: {number}");
|
||||
number = default;
|
||||
Console.WriteLine($"number has been reset to its default: {number}");
|
||||
10
vs4win/Chapter02/Variables/Variables.csproj
Normal file
10
vs4win/Chapter02/Variables/Variables.csproj
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
</Project>
|
||||
34
vs4win/Chapter02/Vocabulary/Program.cs
Normal file
34
vs4win/Chapter02/Vocabulary/Program.cs
Normal file
|
|
@ -0,0 +1,34 @@
|
|||
using System.Reflection;
|
||||
|
||||
// declare some unused variables using types
|
||||
// in additional assemblies
|
||||
System.Data.DataSet ds;
|
||||
HttpClient client;
|
||||
|
||||
Assembly? myApp = Assembly.GetEntryAssembly();
|
||||
|
||||
if (myApp == null) return; // quit the app
|
||||
|
||||
// loop through the assemblies that my app references
|
||||
foreach (AssemblyName name in myApp.GetReferencedAssemblies())
|
||||
{
|
||||
// load the assembly so we can read its details
|
||||
Assembly a = Assembly.Load(name);
|
||||
|
||||
// declare a variable to count the number of methods
|
||||
int methodCount = 0;
|
||||
|
||||
// loop through all the types in the assembly
|
||||
foreach (TypeInfo t in a.DefinedTypes)
|
||||
{
|
||||
// add up the counts of methods
|
||||
methodCount += t.GetMethods().Count();
|
||||
}
|
||||
|
||||
// output the count of types and their methods
|
||||
Console.WriteLine(
|
||||
"{0:N0} types with {1:N0} methods in {2} assembly.",
|
||||
arg0: a.DefinedTypes.Count(),
|
||||
arg1: methodCount,
|
||||
arg2: name.Name);
|
||||
}
|
||||
15
vs4win/Chapter02/Vocabulary/Vocabulary.csproj
Normal file
15
vs4win/Chapter02/Vocabulary/Vocabulary.csproj
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Remove="System.Threading" />
|
||||
<Using Include="System.Numerics" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
15
vscode/Chapter02/Arguments/Arguments.csproj
Normal file
15
vscode/Chapter02/Arguments/Arguments.csproj
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Include="System.Console" Static="true" />
|
||||
</ItemGroup>
|
||||
|
||||
|
||||
</Project>
|
||||
32
vscode/Chapter02/Arguments/Program.cs
Normal file
32
vscode/Chapter02/Arguments/Program.cs
Normal file
|
|
@ -0,0 +1,32 @@
|
|||
WriteLine($"There are {args.Length} arguments.");
|
||||
|
||||
foreach (string arg in args)
|
||||
{
|
||||
WriteLine(arg);
|
||||
}
|
||||
|
||||
if (args.Length < 3)
|
||||
{
|
||||
WriteLine("You must specify two colors and cursor size, e.g.");
|
||||
WriteLine("dotnet run red yellow 50");
|
||||
return; // stop running
|
||||
}
|
||||
|
||||
ForegroundColor = (ConsoleColor)Enum.Parse(
|
||||
enumType: typeof(ConsoleColor),
|
||||
value: args[0],
|
||||
ignoreCase: true);
|
||||
|
||||
BackgroundColor = (ConsoleColor)Enum.Parse(
|
||||
enumType: typeof(ConsoleColor),
|
||||
value: args[1],
|
||||
ignoreCase: true);
|
||||
|
||||
try
|
||||
{
|
||||
CursorSize = int.Parse(args[2]);
|
||||
}
|
||||
catch (PlatformNotSupportedException)
|
||||
{
|
||||
WriteLine("The current platform does not support changing the size of the cursor.");
|
||||
}
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
{
|
||||
"profiles": {
|
||||
"Arguments": {
|
||||
"commandName": "Project",
|
||||
"commandLineArgs": "red yellow 50"
|
||||
}
|
||||
}
|
||||
}
|
||||
10
vscode/Chapter02/Arrays/Arrays.csproj
Normal file
10
vscode/Chapter02/Arrays/Arrays.csproj
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
</Project>
|
||||
70
vscode/Chapter02/Arrays/Program.cs
Normal file
70
vscode/Chapter02/Arrays/Program.cs
Normal file
|
|
@ -0,0 +1,70 @@
|
|||
string[] names; // can reference any size array of strings
|
||||
|
||||
// allocating memory for four strings in an array
|
||||
names = new string[4];
|
||||
|
||||
// storing items at index positions
|
||||
names[0] = "Kate";
|
||||
names[1] = "Jack";
|
||||
names[2] = "Rebecca";
|
||||
names[3] = "Tom";
|
||||
|
||||
string[] names2 = new[] { "Kate", "Jack", "Rebecca", "Tom" };
|
||||
|
||||
// looping through the names
|
||||
for (int i = 0; i < names2.Length; i++)
|
||||
{
|
||||
// output the item at index position i
|
||||
Console.WriteLine(names2[i]);
|
||||
}
|
||||
|
||||
string[,] grid1 = new[,] // two dimensions
|
||||
{
|
||||
{ "Alpha", "Beta", "Gamma", "Delta" },
|
||||
{ "Anne", "Ben", "Charlie", "Doug" },
|
||||
{ "Aardvark", "Bear", "Cat", "Dog" }
|
||||
};
|
||||
|
||||
Console.WriteLine($"Lower bound of the first dimension is: {grid1.GetLowerBound(0)}");
|
||||
Console.WriteLine($"Upper bound of the first dimension is: {grid1.GetUpperBound(0)}");
|
||||
Console.WriteLine($"Lower bound of the second dimension is: {grid1.GetLowerBound(1)}");
|
||||
Console.WriteLine($"Upper bound of the second dimension is: {grid1.GetUpperBound(1)}");
|
||||
|
||||
for (int row = 0; row <= grid1.GetUpperBound(0); row++)
|
||||
{
|
||||
for (int col = 0; col <= grid1.GetUpperBound(1); col++)
|
||||
{
|
||||
Console.WriteLine($"Row {row}, Column {col}: {grid1[row, col]}");
|
||||
}
|
||||
}
|
||||
|
||||
// alternative syntax
|
||||
string[,] grid2 = new string[3,4]; // allocate memory
|
||||
grid2[0, 0] = "Alpha"; // assign string values
|
||||
// and so on
|
||||
grid2[2, 3] = "Dog";
|
||||
|
||||
string[][] jagged = new[] // array of string arrays
|
||||
{
|
||||
new[] { "Alpha", "Beta", "Gamma" },
|
||||
new[] { "Anne", "Ben", "Charlie", "Doug" },
|
||||
new[] { "Aardvark", "Bear" }
|
||||
};
|
||||
|
||||
Console.WriteLine("Upper bound of array of arrays is: {0}",
|
||||
jagged.GetUpperBound(0));
|
||||
|
||||
for (int array = 0; array <= jagged.GetUpperBound(0); array++)
|
||||
{
|
||||
Console.WriteLine("Upper bound of array {0} is: {1}",
|
||||
arg0: array,
|
||||
arg1: jagged[array].GetUpperBound(0));
|
||||
}
|
||||
|
||||
for (int row = 0; row <= jagged.GetUpperBound(0); row++)
|
||||
{
|
||||
for (int col = 0; col <= jagged[row].GetUpperBound(0); col++)
|
||||
{
|
||||
Console.WriteLine($"Row {row}, Column {col}: {jagged[row][col]}");
|
||||
}
|
||||
}
|
||||
15
vscode/Chapter02/AsyncConsole/AsyncConsole.csproj
Normal file
15
vscode/Chapter02/AsyncConsole/AsyncConsole.csproj
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Include="System.Console" Static="true" />
|
||||
</ItemGroup>
|
||||
|
||||
|
||||
</Project>
|
||||
7
vscode/Chapter02/AsyncConsole/Program.cs
Normal file
7
vscode/Chapter02/AsyncConsole/Program.cs
Normal file
|
|
@ -0,0 +1,7 @@
|
|||
HttpClient client = new();
|
||||
|
||||
HttpResponseMessage response =
|
||||
await client.GetAsync("http://www.apple.com/");
|
||||
|
||||
WriteLine("Apple's home page has {0:N0} bytes.",
|
||||
response.Content.Headers.ContentLength);
|
||||
25
vscode/Chapter02/Chapter02.code-workspace
Normal file
25
vscode/Chapter02/Chapter02.code-workspace
Normal file
|
|
@ -0,0 +1,25 @@
|
|||
{
|
||||
"folders": [
|
||||
{
|
||||
"path": "Arguments"
|
||||
},
|
||||
{
|
||||
"path": "Arrays"
|
||||
},
|
||||
{
|
||||
"path": "AsyncConsole"
|
||||
},
|
||||
{
|
||||
"path": "Formatting"
|
||||
},
|
||||
{
|
||||
"path": "Numbers"
|
||||
},
|
||||
{
|
||||
"path": "Variables"
|
||||
},
|
||||
{
|
||||
"path": "Vocabulary"
|
||||
}
|
||||
]
|
||||
}
|
||||
14
vscode/Chapter02/Formatting/Formatting.csproj
Normal file
14
vscode/Chapter02/Formatting/Formatting.csproj
Normal file
|
|
@ -0,0 +1,14 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Include="System.Console" Static="true" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
35
vscode/Chapter02/Formatting/Program.cs
Normal file
35
vscode/Chapter02/Formatting/Program.cs
Normal file
|
|
@ -0,0 +1,35 @@
|
|||
using static System.Console;
|
||||
|
||||
int numberOfApples = 12;
|
||||
decimal pricePerApple = 0.35M;
|
||||
|
||||
WriteLine(
|
||||
format: "{0} apples costs {1:C}",
|
||||
arg0: numberOfApples,
|
||||
arg1: pricePerApple * numberOfApples);
|
||||
|
||||
string formatted = string.Format(
|
||||
format: "{0} apples costs {1:C}",
|
||||
arg0: numberOfApples,
|
||||
arg1: pricePerApple * numberOfApples);
|
||||
|
||||
//WriteToFile(formatted); // writes the string into a file
|
||||
|
||||
WriteLine($"{numberOfApples} apples costs {pricePerApple * numberOfApples:C}");
|
||||
|
||||
Write("Type your first name and press ENTER: ");
|
||||
string? firstName = ReadLine(); // nulls are expected
|
||||
|
||||
Write("Type your age and press ENTER: ");
|
||||
string age = ReadLine()!; // null won't be returned
|
||||
|
||||
WriteLine(
|
||||
$"Hello {firstName}, you look good for {age}.");
|
||||
|
||||
Write("Press any key combination: ");
|
||||
ConsoleKeyInfo key = ReadKey();
|
||||
WriteLine();
|
||||
WriteLine("Key: {0}, Char: {1}, Modifiers: {2}",
|
||||
arg0: key.Key,
|
||||
arg1: key.KeyChar,
|
||||
arg2: key.Modifiers);
|
||||
10
vscode/Chapter02/Numbers/Numbers.csproj
Normal file
10
vscode/Chapter02/Numbers/Numbers.csproj
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
</Project>
|
||||
52
vscode/Chapter02/Numbers/Program.cs
Normal file
52
vscode/Chapter02/Numbers/Program.cs
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
// unsigned integer means positive whole number or 0
|
||||
uint naturalNumber = 23;
|
||||
|
||||
// integer means negative or positive whole number or 0
|
||||
int integerNumber = -23;
|
||||
|
||||
// float means single-precision floating point
|
||||
// F suffix makes it a float literal
|
||||
float realNumber = 2.3F;
|
||||
|
||||
// double means double-precision floating point
|
||||
double anotherRealNumber = 2.3; // double literal
|
||||
|
||||
// three variables that store the number 2 million
|
||||
int decimalNotation = 2_000_000;
|
||||
int binaryNotation = 0b_0001_1110_1000_0100_1000_0000;
|
||||
int hexadecimalNotation = 0x_001E_8480;
|
||||
|
||||
// check the three variables have the same value
|
||||
// both statements output true
|
||||
Console.WriteLine($"{decimalNotation == binaryNotation}");
|
||||
Console.WriteLine(
|
||||
$"{decimalNotation == hexadecimalNotation}");
|
||||
|
||||
Console.WriteLine($"int uses {sizeof(int)} bytes and can store numbers in the range {int.MinValue:N0} to {int.MaxValue:N0}.");
|
||||
Console.WriteLine($"double uses {sizeof(double)} bytes and can store numbers in the range {double.MinValue:N0} to {double.MaxValue:N0}.");
|
||||
Console.WriteLine($"decimal uses {sizeof(decimal)} bytes and can store numbers in the range {decimal.MinValue:N0} to {decimal.MaxValue:N0}.");
|
||||
|
||||
Console.WriteLine("Using doubles:");
|
||||
double a = 0.1;
|
||||
double b = 0.2;
|
||||
if (a + b == 0.3)
|
||||
{
|
||||
Console.WriteLine($"{a} + {b} equals {0.3}");
|
||||
}
|
||||
else
|
||||
{
|
||||
Console.WriteLine($"{a} + {b} does NOT equal {0.3}");
|
||||
}
|
||||
|
||||
Console.WriteLine("Using decimals:");
|
||||
decimal c = 0.1M; // M suffix means a decimal literal value
|
||||
decimal d = 0.2M;
|
||||
|
||||
if (c + d == 0.3M)
|
||||
{
|
||||
Console.WriteLine($"{c} + {d} equals {0.3M}");
|
||||
}
|
||||
else
|
||||
{
|
||||
Console.WriteLine($"{c} + {d} does NOT equal {0.3M}");
|
||||
}
|
||||
51
vscode/Chapter02/Variables/Program.cs
Normal file
51
vscode/Chapter02/Variables/Program.cs
Normal file
|
|
@ -0,0 +1,51 @@
|
|||
using System.Xml;
|
||||
|
||||
object height = 1.88; // storing a double in an object
|
||||
object name = "Amir"; // storing a string in an object
|
||||
Console.WriteLine($"{name} is {height} metres tall.");
|
||||
|
||||
//int length1 = name.Length; // gives compile error!
|
||||
int length2 = ((string)name).Length; // tell compiler it is a string
|
||||
Console.WriteLine($"{name} has {length2} characters.");
|
||||
|
||||
// storing a string in a dynamic object
|
||||
// string has a Length property
|
||||
dynamic something = "Ahmed";
|
||||
|
||||
// int does not have a Length property
|
||||
something = 12;
|
||||
// an array of any type has a Length property
|
||||
something = new[] { 3, 5, 7 };
|
||||
|
||||
// this compiles but would throw an exception at run-time
|
||||
// if you later store a data type that does not have a
|
||||
// property named Length
|
||||
Console.WriteLine($"Length is {something.Length}");
|
||||
|
||||
var population = 66_000_000; // 66 million in UK
|
||||
var weight = 1.88; // in kilograms
|
||||
var price = 4.99M; // in pounds sterling
|
||||
var fruit = "Apples"; // strings use double-quotes
|
||||
var letter = 'Z'; // chars use single-quotes
|
||||
var happy = true; // Booleans have value of true or false
|
||||
|
||||
// good use of var because it avoids the repeated type
|
||||
// as shown in the more verbose second statement
|
||||
var xml1 = new XmlDocument(); // C# 3 and later
|
||||
XmlDocument xml2 = new XmlDocument(); // all C# versions
|
||||
|
||||
// bad use of var because we cannot tell the type, so we
|
||||
// should use a specific type declaration as shown in
|
||||
// the second statement
|
||||
var file1 = File.CreateText("something1.txt");
|
||||
StreamWriter file2 = File.CreateText("something2.txt");
|
||||
|
||||
Console.WriteLine($"default(int) = {default(int)}");
|
||||
Console.WriteLine($"default(bool) = {default(bool)}");
|
||||
Console.WriteLine($"default(DateTime) = {default(DateTime)}");
|
||||
Console.WriteLine($"default(string) = {default(string)}");
|
||||
|
||||
int number = 13;
|
||||
Console.WriteLine($"number has been set to: {number}");
|
||||
number = default;
|
||||
Console.WriteLine($"number has been reset to its default: {number}");
|
||||
10
vscode/Chapter02/Variables/Variables.csproj
Normal file
10
vscode/Chapter02/Variables/Variables.csproj
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
</Project>
|
||||
34
vscode/Chapter02/Vocabulary/Program.cs
Normal file
34
vscode/Chapter02/Vocabulary/Program.cs
Normal file
|
|
@ -0,0 +1,34 @@
|
|||
using System.Reflection;
|
||||
|
||||
// declare some unused variables using types
|
||||
// in additional assemblies
|
||||
System.Data.DataSet ds;
|
||||
HttpClient client;
|
||||
|
||||
Assembly? myApp = Assembly.GetEntryAssembly();
|
||||
|
||||
if (myApp == null) return; // quit the app
|
||||
|
||||
// loop through the assemblies that my app references
|
||||
foreach (AssemblyName name in myApp.GetReferencedAssemblies())
|
||||
{
|
||||
// load the assembly so we can read its details
|
||||
Assembly a = Assembly.Load(name);
|
||||
|
||||
// declare a variable to count the number of methods
|
||||
int methodCount = 0;
|
||||
|
||||
// loop through all the types in the assembly
|
||||
foreach (TypeInfo t in a.DefinedTypes)
|
||||
{
|
||||
// add up the counts of methods
|
||||
methodCount += t.GetMethods().Count();
|
||||
}
|
||||
|
||||
// output the count of types and their methods
|
||||
Console.WriteLine(
|
||||
"{0:N0} types with {1:N0} methods in {2} assembly.",
|
||||
arg0: a.DefinedTypes.Count(),
|
||||
arg1: methodCount,
|
||||
arg2: name.Name);
|
||||
}
|
||||
15
vscode/Chapter02/Vocabulary/Vocabulary.csproj
Normal file
15
vscode/Chapter02/Vocabulary/Vocabulary.csproj
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net6.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<Using Remove="System.Threading" />
|
||||
<Using Include="System.Numerics" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
Loading…
Reference in a new issue