diff --git a/09 Contains_UebgMo/Program.cs b/09 Contains_UebgMo/Program.cs
index 2900d3211e64dcea8bca65c3ec97356dde3d6592..aa09c9b49af5fce64a714e3325b4505b6cbe87e2 100644
--- a/09 Contains_UebgMo/Program.cs
+++ b/09 Contains_UebgMo/Program.cs
@@ -45,6 +45,9 @@ namespace _09_Contains_UebgMo
ContainsTest("aaabcdef", "def");
ContainsTest("def","aaabcdef");
+ ContainsTest("bababi", "babi");
+ ContainsTest("bababi", "");
+
}
}
}
diff --git a/10 StreamWriterIntro/Program.cs b/10 StreamWriterIntro/Program.cs
index ec066d100ea1ce56e430151d827cb2c0cfc8f00b..bd6175d174cc79e1042e1f9601fbac5822d874d7 100644
--- a/10 StreamWriterIntro/Program.cs
+++ b/10 StreamWriterIntro/Program.cs
@@ -16,7 +16,7 @@ namespace _10_StreamWriterIntro
wr.WriteLine();
}
- wr.Close();
+ // wr.Close(); kann bei Verwendung von using entfallen
}
}
}
diff --git a/10 StreamsIntro/Program.cs b/10 StreamsIntro/Program.cs
index 766ad4d7bdddab1bcba55059bcdfdcdf3f6e7321..30f448ef97179be5e907f5c8bbee3fdf4c5753d1 100644
--- a/10 StreamsIntro/Program.cs
+++ b/10 StreamsIntro/Program.cs
@@ -10,7 +10,7 @@ namespace _10_StreamsIntro
//string s = Console.ReadLine();
//StreamReader sr = new StreamReader(@"C:\Users\wienkop\source\repos\Prog1_WS2021_22\10 StreamsIntro\Verkaeufe.txt");
- StreamReader sr = new StreamReader(@"..\..\..\Verkaeufe.txt");
+ using StreamReader sr = new StreamReader(@"..\..\..\Verkaeufe.txt");
// Öffnet die Datei / den Stream
string zeile;
diff --git a/13 DiesUndDas/Program.cs b/13 DiesUndDas/Program.cs
index c9ace4a69326560ec39f781b171e5e1330ed9836..4443521511ed563bb96cc5e22b3779afaf680d31 100644
--- a/13 DiesUndDas/Program.cs
+++ b/13 DiesUndDas/Program.cs
@@ -31,7 +31,35 @@ namespace _13_DiesUndDas
Console.WriteLine("44" + (10 + 2).ToString()); // "44" + 12 --> "4412"
- bool x = (bool)1;
+ int x1 = 'A'; // = 65 (aus der ASCII-Tabelle)
+ char c1 = (char) 65;
+ int x2 = (int) 3.14;
+ int x3 = (int)3.99999; Math.Round(3.5);
+ int x4 = Convert.ToInt32(3.54);
+
+ foreach (int i in new int[] { 8, 21, 20, 9 })
+ {
+ if (i % 2 == 0)
+ {
+ if (i >= 0 && i <= 10)
+ {
+ Console.Write("A");
+ }
+
+ }
+ else
+ {
+ if (i < 0 || i % 3 == 0)
+ {
+ Console.Write("B");
+ }
+ else
+ {
+ Console.Write("C");
+ }
+ }
+ }
+
}
}
}
diff --git a/13 Personalverwaltung_Klausur2015/Program.cs b/13 Personalverwaltung_Klausur2015/Program.cs
index 7b3dae5eb2b9242d0bd74cf018a3703650b1d21c..fce779fd5323c26ed6e796e4e0cfd2795e6ce6b1 100644
--- a/13 Personalverwaltung_Klausur2015/Program.cs
+++ b/13 Personalverwaltung_Klausur2015/Program.cs
@@ -5,7 +5,7 @@ namespace _13_Personalverwaltung_Klausur2015
enum Eingruppierung { Angestellter, Gruppenleiter, Abteilungsleiter }
// Eingruppierung ~ neuer DATENTYP (analog zu int, bool, double, ...)
// Konsequenz: Es müssen noch Variablen dieses Datentyps angelegt werden!
- class Person
+ struct Person
{
public string name;
public double gehalt;
@@ -68,6 +68,8 @@ namespace _13_Personalverwaltung_Klausur2015
Person px = SuchePerson(persFeld, "xxx");
if (px.id == 0)
Console.WriteLine("Suche erfolglos");
+ string s = px.ToString();
+ Console.WriteLine(px);
}
}
}
diff --git a/13 StructPersonalausweis/Program.cs b/13 StructPersonalausweis/Program.cs
index d252143fb9f7671e99f4016065a38474f5870896..5e26e1393ca2e84cd7f7a9dc81be34809d7fb84b 100644
--- a/13 StructPersonalausweis/Program.cs
+++ b/13 StructPersonalausweis/Program.cs
@@ -5,7 +5,10 @@ namespace _13_StructPersonalausweis
struct Personalausweis
{
public string name, vorname;
- public int id;
+ public int id; // private ~ Nur Methoden der struct Personalausweis
+ // dürfen auf dieses Feld zugreifen
+ // public ~ Methoden aller Klassen und structs dürfen
+ // auf dieses Feld zugreifen
public Personalausweis(string Name, string Vorname, int Id)
{
diff --git a/14 QuersummeSchleife/14 QuersummeSchleife.csproj b/14 QuersummeSchleife/14 QuersummeSchleife.csproj
new file mode 100644
index 0000000000000000000000000000000000000000..cf9c011a9e86fb77a117d52b138004108e671f74
--- /dev/null
+++ b/14 QuersummeSchleife/14 QuersummeSchleife.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>netcoreapp3.1</TargetFramework>
+ <RootNamespace>_14_QuersummeSchleife</RootNamespace>
+ </PropertyGroup>
+
+</Project>
diff --git a/14 QuersummeSchleife/Program.cs b/14 QuersummeSchleife/Program.cs
new file mode 100644
index 0000000000000000000000000000000000000000..b8042fec8730f6b9a4110b3d823c050549a33ac3
--- /dev/null
+++ b/14 QuersummeSchleife/Program.cs
@@ -0,0 +1,27 @@
+using System;
+
+namespace _14_QuersummeSchleife
+{
+ class Program
+ {
+ static void Main(string[] args)
+ {
+ do
+ {
+ int quersum = 0;
+ Console.WriteLine("Zahl eingeben: ");
+ int zahl = Convert.ToInt32(Console.ReadLine());
+
+ if (zahl == 0)
+ break;
+
+ while (zahl > 0)
+ {
+ quersum += zahl % 10;
+ zahl /= 10;
+ }
+ Console.WriteLine($"Quersumme: {quersum}");
+ } while (true);
+ }
+ }
+}
diff --git a/14 WerteVsReftypen/14 WerteVsReftypen.csproj b/14 WerteVsReftypen/14 WerteVsReftypen.csproj
new file mode 100644
index 0000000000000000000000000000000000000000..26efffcdb60830a3eb6fba05e18e0226b9e8ea07
--- /dev/null
+++ b/14 WerteVsReftypen/14 WerteVsReftypen.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>netcoreapp3.1</TargetFramework>
+ <RootNamespace>_14_WerteVsReftypen</RootNamespace>
+ </PropertyGroup>
+
+</Project>
diff --git a/14 WerteVsReftypen/Program.cs b/14 WerteVsReftypen/Program.cs
new file mode 100644
index 0000000000000000000000000000000000000000..d1d2e41e54d90a758bf099859047b7dca1578c9f
--- /dev/null
+++ b/14 WerteVsReftypen/Program.cs
@@ -0,0 +1,37 @@
+using System;
+
+namespace _14_WerteVsReftypen
+{
+ struct CoordVal { public int x, y; }
+ class CoordRef { public int x, y; }
+ class Program
+ {
+ public static void TueVal(CoordVal cv)
+ {
+ cv.x++;
+ }
+
+ static void TueVal(ref CoordVal cv)
+ {
+ cv.x++;
+ }
+
+ static void TueRef(CoordRef cv)
+ {
+ cv = new CoordRef();
+ cv.x++;
+ }
+ static void Main(string[] args)
+ {
+ CoordVal c1;
+ c1.x = 10;
+ c1.y = 15;
+ CoordRef c1r;
+ c1r = new CoordRef();
+
+ TueVal(c1); // Von Wertevar. wird eine KOPIE des Werts / aller Felder des structs übergeben
+ TueRef(c1r); // Von Referenzvar. wird eine KOPIE der Referenz übergeben
+ TueVal(ref c1); // Es wird eine Referenz auf c1 (Speicheradr. von c1) an TueVal übergeben
+ }
+ }
+}
diff --git a/14 WoerterZaehlen/14 WoerterZaehlen.csproj b/14 WoerterZaehlen/14 WoerterZaehlen.csproj
new file mode 100644
index 0000000000000000000000000000000000000000..0bc40ffac3c472ee3c5e3daa70f424d394f573fb
--- /dev/null
+++ b/14 WoerterZaehlen/14 WoerterZaehlen.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>netcoreapp3.1</TargetFramework>
+ <RootNamespace>_14_WoerterZaehlen</RootNamespace>
+ </PropertyGroup>
+
+</Project>
diff --git a/14 WoerterZaehlen/Program.cs b/14 WoerterZaehlen/Program.cs
new file mode 100644
index 0000000000000000000000000000000000000000..4d5633847356f33f31ad4bf852017a797d9a00d6
--- /dev/null
+++ b/14 WoerterZaehlen/Program.cs
@@ -0,0 +1,45 @@
+using System;
+
+namespace _14_WoerterZaehlen
+{
+ class Program
+ {
+ static int ZaehleWoerter(string s)
+ {
+ // 1. Wortanfang finden (Sonderzeichen überspringen)
+ // 2. Wortzähler erhöhen
+ // 3. Wort durchlaufen
+ // Bsp.: " Hallo Welt und hello World "
+ int anz = 0;
+ int ind = 0;
+ while (ind < s.Length)
+ {
+ while (ind < s.Length && s[ind] == ' ')
+ ind++;
+
+ if (ind < s.Length)
+ anz++;
+
+ while (ind < s.Length && s[ind] != ' ')
+ ind++;
+ }
+ return anz;
+ }
+
+ static string LeerzeichenEntfernen(string s)
+ {
+ string erg = "" + s[0];
+ for (int i = 1; i < s.Length; i++)
+ {
+ if (!(s[i] == ' ' && s[i - 1] == ' '))
+ erg += s[i];
+ }
+ return erg;
+ }
+ static void Main(string[] args)
+ {
+ Console.WriteLine(LeerzeichenEntfernen(" Hallo Welt und hello World"));
+ Console.WriteLine(ZaehleWoerter(" Hallo Welt und hello World "));
+ }
+ }
+}
diff --git a/14 Zifferntest/14 Zifferntest.csproj b/14 Zifferntest/14 Zifferntest.csproj
new file mode 100644
index 0000000000000000000000000000000000000000..cfd977bdea28a891f62b9fab89cb1218eec9385c
--- /dev/null
+++ b/14 Zifferntest/14 Zifferntest.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>netcoreapp3.1</TargetFramework>
+ <RootNamespace>_14_Zifferntest</RootNamespace>
+ </PropertyGroup>
+
+</Project>
diff --git a/14 Zifferntest/Program.cs b/14 Zifferntest/Program.cs
new file mode 100644
index 0000000000000000000000000000000000000000..9cce58ca186870d14034918a6c788e9818671b58
--- /dev/null
+++ b/14 Zifferntest/Program.cs
@@ -0,0 +1,28 @@
+using System;
+
+namespace _14_Zifferntest
+{
+ class Program
+ {
+ static bool Zifferntest(int n)
+ {
+ if (n <= 0)
+ throw new ArgumentOutOfRangeException("Die Zahl n muss echt größer 0 sein!");
+
+ int zahl = n;
+ while (n>0)
+ {
+ int letzteZiffer = n % 10; // 123/10 -> 12, 123%10 -> 3
+ if (letzteZiffer != 0 && zahl % letzteZiffer != 0)
+ return false;
+ n /= 10;
+ }
+ return true;
+ }
+ static void Main(string[] args)
+ {
+ Console.WriteLine(Zifferntest(101));
+ Console.WriteLine(Zifferntest(125));
+ }
+ }
+}
diff --git a/Prog1_WS2021_22.sln b/Prog1_WS2021_22.sln
index 2edc69bedc2cf3cf776c03035d94855b8596c351..191795be39bd3c7fa15220df8bca04fb1c1e2a17 100644
--- a/Prog1_WS2021_22.sln
+++ b/Prog1_WS2021_22.sln
@@ -137,9 +137,17 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "13 SchriftlichAddieren", "1
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "13 StructPersonalausweis", "13 StructPersonalausweis\13 StructPersonalausweis.csproj", "{3E44868E-6C68-4080-A071-94EDD05624AD}"
EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "13 Personalverwaltung_Klausur2015", "13 Personalverwaltung_Klausur2015\13 Personalverwaltung_Klausur2015.csproj", "{C155A7D4-BCFE-4984-95DE-A9406F96929E}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "13 Personalverwaltung_Klausur2015", "13 Personalverwaltung_Klausur2015\13 Personalverwaltung_Klausur2015.csproj", "{C155A7D4-BCFE-4984-95DE-A9406F96929E}"
EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "13 throw", "13 throw\13 throw.csproj", "{EF692969-7849-446C-B9BD-EEBEF51C5C9C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "13 throw", "13 throw\13 throw.csproj", "{EF692969-7849-446C-B9BD-EEBEF51C5C9C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "14 Zifferntest", "14 Zifferntest\14 Zifferntest.csproj", "{EEAFB9BD-8D54-47DD-B580-1E8AE707CCF3}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "14 QuersummeSchleife", "14 QuersummeSchleife\14 QuersummeSchleife.csproj", "{0D3EE0BA-9BAC-41F1-8EBE-7D9CD88258A0}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "14 WerteVsReftypen", "14 WerteVsReftypen\14 WerteVsReftypen.csproj", "{BFC88FD7-E039-4B89-8EA2-01941C7EC3FC}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "14 WoerterZaehlen", "14 WoerterZaehlen\14 WoerterZaehlen.csproj", "{0B632D4E-DCF1-436A-B3D0-C8DF9BA0EDC0}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -423,6 +431,22 @@ Global
{EF692969-7849-446C-B9BD-EEBEF51C5C9C}.Debug|Any CPU.Build.0 = Debug|Any CPU
{EF692969-7849-446C-B9BD-EEBEF51C5C9C}.Release|Any CPU.ActiveCfg = Release|Any CPU
{EF692969-7849-446C-B9BD-EEBEF51C5C9C}.Release|Any CPU.Build.0 = Release|Any CPU
+ {EEAFB9BD-8D54-47DD-B580-1E8AE707CCF3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {EEAFB9BD-8D54-47DD-B580-1E8AE707CCF3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {EEAFB9BD-8D54-47DD-B580-1E8AE707CCF3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {EEAFB9BD-8D54-47DD-B580-1E8AE707CCF3}.Release|Any CPU.Build.0 = Release|Any CPU
+ {0D3EE0BA-9BAC-41F1-8EBE-7D9CD88258A0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {0D3EE0BA-9BAC-41F1-8EBE-7D9CD88258A0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {0D3EE0BA-9BAC-41F1-8EBE-7D9CD88258A0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {0D3EE0BA-9BAC-41F1-8EBE-7D9CD88258A0}.Release|Any CPU.Build.0 = Release|Any CPU
+ {BFC88FD7-E039-4B89-8EA2-01941C7EC3FC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {BFC88FD7-E039-4B89-8EA2-01941C7EC3FC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {BFC88FD7-E039-4B89-8EA2-01941C7EC3FC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {BFC88FD7-E039-4B89-8EA2-01941C7EC3FC}.Release|Any CPU.Build.0 = Release|Any CPU
+ {0B632D4E-DCF1-436A-B3D0-C8DF9BA0EDC0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {0B632D4E-DCF1-436A-B3D0-C8DF9BA0EDC0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {0B632D4E-DCF1-436A-B3D0-C8DF9BA0EDC0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {0B632D4E-DCF1-436A-B3D0-C8DF9BA0EDC0}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE