diff --git a/08 2D_Felder/Program.cs b/08 2D_Felder/Program.cs
index 02d1caa4e443182bb976de5e4c4d1a3147515987..f9f17f928d28f79a289d10b11ed8ec4f5ef5b0e9 100644
--- a/08 2D_Felder/Program.cs
+++ b/08 2D_Felder/Program.cs
@@ -45,7 +45,7 @@ namespace _08_2D_Felder
FeldAusgeben(g2);
- int[,] h = new int[7, 18];
+ int[,] h = new int[10, 6];
FeldAusgeben(h);
for (int z = 0; z < h.GetLength(0); z++)
@@ -69,7 +69,7 @@ namespace _08_2D_Felder
int[,] hh = FeldKopieren(h);
- // Ganz linke Spalte mit 2 belegen:
+ // Ganz linke Spalte von der zweiten bis zur vorletzten Zeile mit 2 belegen:
for (int z = 1; z < h.GetLength(0)-1; z++) // .GetLength(0) ~ Anzahl der Zeilen
h[z, 0] = 2;
FeldAusgeben(h);
@@ -90,19 +90,20 @@ namespace _08_2D_Felder
///////////////////////////////////////////////////////////////////////////
/// Ausgefranste Felder (Jagged Arrays)
+ /// Feld von Feldern
- int[][] k = new int[5][];
- k[0] = new int[5];
+ int[][] k = new int[5][]; // 5er Feld von ...
+ k[0] = new int[5]; // Feld an der Zeilen-Pos. 0
k[1] = new int[1];
k[3] = new int[] { 4, 5, 6, 7, 8, 9, 3 };
- for (int z = 0; z < k.Length; z++)
+ for (int zeile = 0; zeile < k.Length; zeile++) // Schleife über die Zeilen
{
- if (k[z] != null)
+ if (k[zeile] != null) // Hat diese Zeile ÜBERHAUPT Elemente?
{
- for (int i = 0; i < k[z].Length; i++)
+ for (int i = 0; i < k[zeile].Length; i++) // Schleife über die Elemente einer Zeile
{
- Console.Write($"{k[z][i]} ");
+ Console.Write($"{k[zeile][i]} ");
}
Console.WriteLine();
}
@@ -113,15 +114,28 @@ namespace _08_2D_Felder
}
+ int[][,] k2; // Feld von 2D-Feldern
+ int[][,,] k3; // Feld von 3D-Feldern
- /////////////////////////////////////////////////////////////////////
- ///
- int anz = 6;
- bool[] bf = new bool[1000000];
+ int[,][] k4; // 2D Feld von 1D Feldern
+ int[,][,] k5; // 2D Feld von 2D Feldern
- for (int i = 0; i < bf.Length; i++)
- bf[i] = true;
+ ///////////////////////////////////////////////////////////
+ /// Ranges
+ /// int[] g1 = { 1, 2, 3, 4, 5, 6 };
+ int w1 = g1[0];
+ //int w2 = g1[^1]; // ~ g1[g1.Length-1]
+ //int w3 = g1[^2]; // ~ g1[g1.Length-2]
+
+
+ //// Liefern eine Ausschnitt-KOPIE des Feldes g1
+ //int[] w4 = g1[1..3]; // 2,3 EXKLUSIVER rechter Index
+ //int[] w5 = g1[3..]; // 4,5,6
+ //int[] w5 = g1[3..^0]; // 4,5,6 ~~ ^0 EXKLUSIVER rechter Index
+
+ //int[] w6 = g1[..3]; // 1,2,3
+ //int[] w7 = g1[..]; // Kopie von g1
}
}
}
diff --git a/08 2D_Felder_Ubg_Di/08 2D_Felder_Ubg_Di.csproj b/08 2D_Felder_Ubg_Di/08 2D_Felder_Ubg_Di.csproj
new file mode 100644
index 0000000000000000000000000000000000000000..e9216a61966112b01d7912c159381bab01196bd1
--- /dev/null
+++ b/08 2D_Felder_Ubg_Di/08 2D_Felder_Ubg_Di.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>netcoreapp3.1</TargetFramework>
+ <RootNamespace>_08_2D_Felder_Ubg_Di</RootNamespace>
+ </PropertyGroup>
+
+</Project>
diff --git a/08 2D_Felder_Ubg_Di/Program.cs b/08 2D_Felder_Ubg_Di/Program.cs
new file mode 100644
index 0000000000000000000000000000000000000000..114ee307213e5890d8a27e79b40ec218f8e40346
--- /dev/null
+++ b/08 2D_Felder_Ubg_Di/Program.cs
@@ -0,0 +1,69 @@
+using System;
+
+namespace _08_2D_Felder_Ubg_Di
+{
+ class Program
+ {
+ static void FeldAusgeben(int[,] feld)
+ {
+ for (int z = 0; z < feld.GetLength(0); z++) // GetLength(n) ~ Anzahl der Elemente in der Dimension n
+ {
+ for (int i = 0; i < feld.GetLength(1); i++)
+ Console.Write($"{feld[z, i],3} ");
+
+ Console.WriteLine();
+ }
+ Console.WriteLine("-----------------------------");
+ }
+ /// <summary>
+ /// Initialisiert ein neu anzulegendes n*n Feld mit aufsteigenden Werten
+ /// </summary>
+ /// <param name="n">Größe des Feldes</param>
+ /// <returns>n*n Feld</returns>
+ static int[,] InitFeld(int n)
+ {
+ int[,] feld = new int[n, n];
+ int wert = 1;
+
+ for (int z = 0; z < feld.GetLength(0); z++) // GetLength(n) ~ Anzahl der Elemente in der Dimension n
+ {
+ for (int i = 0; i < feld.GetLength(1); i++)
+ feld[z, i] = wert++;
+ //feld[z, i] = z * n + i + 1;
+ }
+ return feld;
+ }
+
+ static void Vierer(int [,] f)
+ {
+ for (int z = 0; z < f.GetLength(0); z++) // GetLength(n) ~ Anzahl der Elemente in der Dimension n
+ for (int i = 0; i < f.GetLength(1); i++)
+ if (f[z, i] % 4 == 0)
+ f[z, i] = 0;
+ }
+
+
+
+ static void Diagonale(int[,] f)
+ {
+ for (int i = 0; i < f.GetLength(1); i++)
+ {
+ f[i, i] = -1; // Hauptdiagonale
+ f[i,f.GetLength(0) - 1 - i] = -2; // Nebendiagonale
+ }
+ }
+ static void Main(string[] args)
+ {
+ int[,] f= InitFeld(12);
+ Vierer(f);
+ Diagonale(f);
+ FeldAusgeben(f);
+
+ // 8x8 Spielfeld
+ // Ausgabefunktion für Felder schreiben
+ // Elemente mit 1..64 vorbelegen
+ // Alle durch 4 teilbaren Werte mit 0 überschreiben
+ // Diagonale mit -1 eintragen
+ }
+ }
+}
diff --git a/08 ZeichenkettenIntro/08 ZeichenkettenIntro.csproj b/08 ZeichenkettenIntro/08 ZeichenkettenIntro.csproj
new file mode 100644
index 0000000000000000000000000000000000000000..1b6e81faeb001d38cc64f4e3527e5ecb238d4203
--- /dev/null
+++ b/08 ZeichenkettenIntro/08 ZeichenkettenIntro.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>netcoreapp3.1</TargetFramework>
+ <RootNamespace>_08_ZeichenkettenIntro</RootNamespace>
+ </PropertyGroup>
+
+</Project>
diff --git a/08 ZeichenkettenIntro/Program.cs b/08 ZeichenkettenIntro/Program.cs
new file mode 100644
index 0000000000000000000000000000000000000000..326d9497d1013b80923161cb5fc7649ec610f59c
--- /dev/null
+++ b/08 ZeichenkettenIntro/Program.cs
@@ -0,0 +1,58 @@
+using System;
+
+namespace _08_ZeichenkettenIntro
+{
+ class Program
+ {
+ static void ASCII_Tabelle()
+ {
+ string s = "ABC..XYZ abc..xyz 012..789";
+ //for (int i = 0; i < s.Length; i++)
+ //{
+ // Console.WriteLine(s[i]);
+ //}
+ foreach (char c in s)
+ {
+ Console.WriteLine($"{c} - {(int)c}");
+ }
+
+ Console.WriteLine("-------------------");
+
+ for (int i = 32; i < 128; i++)
+ {
+ Console.WriteLine($"{i,3} - {(char)i}");
+ }
+ }
+ static string InGrossbuchstabenKonvertieren(string s)
+ {
+ string erg = "";
+ foreach (char c in s)
+ {
+ if (c >= 'a' && c <= 'z') // Handelt es sich um einen Kleinbuchstaben?
+ erg += (char)(c - ('a' - 'A')); // Differenz zwischen Klein- u. Großbuchstaben abziehen
+ else
+ erg += c;
+ }
+ return erg;
+ }
+ static string InKleinbuchstabenKonvertieren(string s)
+ {
+ string erg = "";
+ foreach (char c in s)
+ {
+ if (c >= 'A' && c <= 'Z') // Handelt es sich um einen Kleinbuchstaben?
+ erg += (char)(c + ('a' - 'A')); // Differenz zwischen Klein- u. Großbuchstaben abziehen
+ else
+ erg += c;
+ }
+ return erg;
+ }
+ static void Main(string[] args)
+ {
+ string s = "Hello World!";
+
+ Console.WriteLine(InGrossbuchstabenKonvertieren(s));
+ Console.WriteLine(InKleinbuchstabenKonvertieren(s));
+ }
+ }
+}
diff --git a/Prog1_WS2021_22.sln b/Prog1_WS2021_22.sln
index a3378c618177ec0b91dff3ee0e4e3f9195669592..e5d06192f3b525747cefac653cf48b8e464a23f9 100644
--- a/Prog1_WS2021_22.sln
+++ b/Prog1_WS2021_22.sln
@@ -57,9 +57,13 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "07 ArraysByRef", "07 Arrays
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "07 DoubleUngenauigkeiten", "07 DoubleUngenauigkeiten\07 DoubleUngenauigkeiten.csproj", "{982D3EE4-33F6-48B9-8E8A-68DCCDFA3A84}"
EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "08 RefVsOut", "08 RefVsOut\08 RefVsOut.csproj", "{4724CACD-310A-4F71-B140-400D77C92EC7}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "08 RefVsOut", "08 RefVsOut\08 RefVsOut.csproj", "{4724CACD-310A-4F71-B140-400D77C92EC7}"
EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "08 2D_Felder", "08 2D_Felder\08 2D_Felder.csproj", "{EE89CDF4-D279-4F6D-82E0-26175D60DF5D}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "08 2D_Felder", "08 2D_Felder\08 2D_Felder.csproj", "{EE89CDF4-D279-4F6D-82E0-26175D60DF5D}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "08 2D_Felder_Ubg_Di", "08 2D_Felder_Ubg_Di\08 2D_Felder_Ubg_Di.csproj", "{00DFDFC9-A638-4392-934F-D83ADD9D9530}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "08 ZeichenkettenIntro", "08 ZeichenkettenIntro\08 ZeichenkettenIntro.csproj", "{36213D4C-1100-4634-A883-1BC46FD24298}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -183,6 +187,14 @@ Global
{EE89CDF4-D279-4F6D-82E0-26175D60DF5D}.Debug|Any CPU.Build.0 = Debug|Any CPU
{EE89CDF4-D279-4F6D-82E0-26175D60DF5D}.Release|Any CPU.ActiveCfg = Release|Any CPU
{EE89CDF4-D279-4F6D-82E0-26175D60DF5D}.Release|Any CPU.Build.0 = Release|Any CPU
+ {00DFDFC9-A638-4392-934F-D83ADD9D9530}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {00DFDFC9-A638-4392-934F-D83ADD9D9530}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {00DFDFC9-A638-4392-934F-D83ADD9D9530}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {00DFDFC9-A638-4392-934F-D83ADD9D9530}.Release|Any CPU.Build.0 = Release|Any CPU
+ {36213D4C-1100-4634-A883-1BC46FD24298}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {36213D4C-1100-4634-A883-1BC46FD24298}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {36213D4C-1100-4634-A883-1BC46FD24298}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {36213D4C-1100-4634-A883-1BC46FD24298}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE