DenkzeitWiki

Java

• http://java.sun.com/docs/books/jls/second_edition/html/j.title.doc.html --Java Language Specification
• http://www.artima.com/insidejvm/ed2/jvm.html
  
  
• http://www.newartisans.com/2009/03/the-jvm-and-costs-vs-benefits.html
  • impact on startup-time
  • it's not to the user where things get costly -> removed freedom

• http://blog.objectmentor.com/articles/2009/01/15/adopting-new-jvm-languages-in-the-enterprise
  
  
• The Javaverse

Versions

• http://en.wikipedia.org/wiki/Java_version_history
• http://en.wikipedia.org/wiki/List_of_Java_virtual_machines

Unterschiede zwischen 1.5 und 1.4

• http://www.inf.fu-berlin.de/inst/ag-se/teaching/S-BSE/017_java_1_5.pdf --sehr gute Präsentation
• http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html --New Features and Enhancements, J2SE 5.0
• http://java.sun.com/j2se/1.5.0/docs/guide/rmi/relnotes.html --RMI in 1.5

Generics

• JavaGenerics

Swing und AWT

• http://cannings.org/oldCourses/javaIntermediate/swing.html
• http://pandonia.canberra.edu.au/java/xadvisor/eventmodel/eventmodel.html --Event handling
• http://www.linuxjournal.com/article/2627 --It ain't ugly, it's my GUI. --Building Reusable Java Widgets
• http://www.javaworld.com/javaworld/javatips/jw-javatip35.html --Create new event types in Java

Netzwerkprogrammierung

• http://www.innovation.ch/java/HTTPClient/urlcon_vs_httpclient.html
• http://www.science.uva.nl/ict/ossdocs/java/tutorial/networking/urls/readingWriting.html

Innere Klassen

• Wiki:InnerClasses
• http://www.onjava.com/pub/a/onjava/excerpt/HardcoreJava_chap06/

Sonst

• JavaBeans
• EnterpriseJavaBeans

GarbageCollection

• http://www.tagtraum.com/gcviewer.html

Server and Client JVM

• http://java.sun.com/j2se/1.3/docs/guide/performance/hotspot.html
  • The Java HotSpot Client VM has been specially tuned to reduce application start-up time and memory footprint, making it particulary well suited for client environments.
  • The Java HotSpot Server VM is similar to the Java HotSpot Client VM, except that it has been specially tuned to maximize peak operating speed. It is intended for running long-running server applications, for which having the fastest possible operating speed is generally more important than having the fastest possible start-up time.
    
  
  
• http://stackoverflow.com/questions/198577/real-differences-between-java-server-and-java-client
  • The Client VM compiler does not try to execute many of the more complex optimizations performed by the compiler in the Server VM, but in exchange, it requires less time to analyze and compile a piece of code. This means the Client VM can start up faster and requires a smaller memory footprint.
  • The Server VM contains an advanced adaptive compiler that supports many of the same types of optimizations performed by optimizing C++ compilers, as well as some optimizations that cannot be done by traditional compilers, such as aggressive inlining across virtual method invocations. This is a competitive and performance advantage over static compilers. Adaptive optimization technology is very flexible in its approach, and typically outperforms even advanced static analysis and compilation techniques.
    
  
  
• http://forums.sun.com/thread.jspa?threadID=726793
  • The one that is chosen by default depends on Java version, the OS, the number of processors and other such things.
  
  
• http://java.sun.com/javase/6/webnotes/install/jre/README
  • On Microsoft Windows platforms, the JDK includes both the Java HotSpot(TM) Server VM and Java HotSpot Client VM.
  • However, the Java SE Runtime Environment for Microsoft Windows platforms includes only the Java HotSpot Client VM. Those wishing to use the Java HotSpot Server VM with the Java SE Runtime Environment may copy the JDK's jre\bin\server folder to a bin\server directory in the Java SE Runtime Environment.
  
  
• http://forums.sun.com/thread.jspa?threadID=567821&forumID=17
  • In your "Documents and Settings\username\Application Data" folder you'll probably find a folder named "Sun".
  
  
• http://www.javakb.com/Uwe/Forum.aspx/java-setup/6130/The-Java-Runtime-Environment-cannot-be-loaded-from-bin-server

 
 HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.6\RuntimeLib

 C:\Program Files\Java\jdk1.5.0\jre\lib\i386\jvm.cfg
   -client KNOWN
 

• http://java.sun.com/docs/hotspot/HotSpotFAQ.html#compiler_download
  • Client and server systems are both downloaded with the 32-bit Solaris and Linux downloads. For 32-bit Windows, if you download the JRE, you get only the client, you'll need to download the SDK to get both systems.

HotSpot

• My Favorite Hotspot JVM Flags
  
• http://blog.juma.me.uk/2008/10/14/32-bit-or-64-bit-jvm-how-about-a-hybrid/