luento11

luennot/luento09/StringVsStringBuilder/StringVsStringBuilder.cs

@@ -18,7 +18,7 @@ public class StringVsStringBuilder
     public static void Main(string[] args)
     {
         // Yhdistellään merkkijonoja StringBuilder-olion avulla
-        const int MONTAKO = 50000; // Montako kertaa merkkijonoja yhdistellään
+        const int MONTAKO = 2*50000; // Montako kertaa merkkijonoja yhdistellään
         Stopwatch sw = Stopwatch.StartNew();
         StringBuilder sb = new StringBuilder("a");
         for (int i = 0; i < MONTAKO; i++)
@@ -69,5 +69,13 @@ public class StringVsStringBuilder
         // Pituus 588891
         // True
 
+        // Tulostus 2023, AMD Ryzen 9 5900X 12-Core Processor 3.70 GHz
+        // StringBuilder   0.004 s
+        // Pituus 588891
+        // SB Insert      10.201 s
+        // Pituus 588891
+        // String          8.836 s
+        // Pituus 588891
+        // True
     }
 }

luennot/luento10/.idea/.idea.luento10/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Rider ignored files
+/contentModel.xml
+/.idea.luento10.iml
+/projectSettingsUpdater.xml
+/modules.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

luennot/luento10/.idea/.idea.luento10/.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>
\ No newline at end of file

luennot/luento10/.idea/.idea.luento10/.idea/indexLayout.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>
\ No newline at end of file

luennot/luento10/.idea/.idea.luento10/.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

luennot/luento11/.idea/.idea.luento11/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Rider ignored files
+/.idea.luento11.iml
+/modules.xml
+/contentModel.xml
+/projectSettingsUpdater.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

luennot/luento11/.idea/.idea.luento11/.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>
\ No newline at end of file

luennot/luento11/.idea/.idea.luento11/.idea/indexLayout.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>
\ No newline at end of file

luennot/luento11/.idea/.idea.luento11/.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

luennot/luento11/Olioviitteet/Olioviitteet.cs

 using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Text;
 
 /// @author  Vesa Lappalainen
@@ -43,17 +41,18 @@ public class Olioviitteet
 
         // ==========================================================
 
-        String st1 = "eka";
-        String st2 = s1.ToString();
+        string st1 = "eka";
+        string st2 = s1.ToString();
 
         Console.WriteLine(Object.ReferenceEquals(st1, st2)); // false
         Console.WriteLine(st1 == st2);       // true
         Console.WriteLine(st1.Equals(st2));  // true
+        Console.WriteLine(object.ReferenceEquals(st1, st2)); // false
 
         st2 = null;
         Console.WriteLine(st2 == null);       // true
-        Console.WriteLine(Object.ReferenceEquals(st1, st2)); // false
+        Console.WriteLine(object.ReferenceEquals(st1, st2)); // false
         st1 = null;
-        Console.WriteLine(Object.ReferenceEquals(st1, st2)); // true
+        Console.WriteLine(object.ReferenceEquals(st1, st2)); // true
     }
 }