Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- en:faq [2014/04/26 09:50] – created roehner
+++ en:faq [2022/10/01 16:43] (aktuell) – Externe Bearbeitung 127.0.0.1
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+=====FAQ=====
 **1. Can I use the Java-Editor in teaching at school? Can my pupils use it at home?**\\
 Yes, the Java-Editor is freeware, especially developed for teaching purposes.
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 **4. Is it possible to separate Java files from class files?**\\
-Yes, add ''-d <directory for class files>'' as a [[Configuration#compiler|compiler parameter]]. Your class files will then be placed in the specified directory. For the Java interpreter to find the class files, you must also add the directory in the ''Classpath-User'' of the [[Configuration#interpreter|interpreter]] configuration.
+Yes, add //-d <directory for class files>// as a [[Configuration#compiler|compiler parameter]]. Your class files will then be placed in the specified directory. For the Java interpreter to find the class files, you must also add the directory in the //Classpath-User// of the [[Configuration#interpreter|interpreter]] configuration.
 **5. Which access rights does the Java-Editor require?**\\
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 **6. Is the Java-Editor network-compatible?**\\
-The Java-Editor supports local drives, network drives and the UNC notation for direct network access, e. g. \\server\folder\program.java. This applies to Java files, the documentation files, and the entire JDK.
+The Java-Editor supports local drives, network drives and the UNC notation for direct network access, e. g. %%\\server\folder\program.java%%. This applies to Java files, the documentation files, and the entire JDK.
 **7. Can the Java-Editor be installed on a server?**\\
@@ Zeile 21: / Zeile 22: @@
 **8. Where does the Java-Editor store configuration data?**\\
-During the installation, you decide whether the Java-Editor uses ini-files or the windows registry for configuration data. The configuration in the [[Configuration#Java|Java section]] is protected. It is stored in the HKEY_LOCAL_MACHINE\Software\JavaEditor hive of the registry or in the file JEMachine.ini. User-specific settings are stored separately for each user in the hive KEY_CURRENT_USER\Software\JavaEditor or in the file JEUser.ini. The ''Dump'' button in the configuration window opens a text file which contains the current storage locations.
+During the installation, you decide whether the Java-Editor uses ini-files or the windows registry for configuration data. The configuration in the [[Configuration#Java|Java section]] is protected. It is stored in the HKEY_LOCAL_MACHINE\Software\JavaEditor hive of the registry or in the file JEMachine.ini. User-specific settings are stored separately for each user in the hive KEY_CURRENT_USER\Software\JavaEditor or in the file JEUser.ini. The //Dump// button in the configuration window opens a text file which contains the current storage locations.
 The Java-Editor looks after a file JEMachine.INI in its folder. If this file exists, it uses ini files, otherwise it uses the windos registry to store configuration data.
 **9. My Java program doesn't start. What can I do?**\\
-If your Java program is compiled without errors but your program does not start, it is likely that runtime errors occur during the execution. You can use the ''RunJava.bat'' file for further analysing the problem. Open the [[Configuration#interpreter|interpreter]] configuration and click on ''RunJava.bat'' to edit the batch file which is used to start your Java program. Replace ''@ECHO OFF'' with ''@ECHO ON'' and insert PAUSE at the end of the file. Save the modified ''RunJava.bat'' and select ''DOS Window'' from the [[Java-Editor#window menu|window menu]]. This opens a console window with the folder of RunJava.bat as current folder. Type in RunJava.bat and analyse the error messages.
+If your Java program is compiled without errors but your program does not start, it is likely that runtime errors occur during the execution. You can use the //RunJava.bat// file for further analysing the problem. Open the [[Configuration#interpreter|interpreter]] configuration and click on //RunJava.bat// to edit the batch file which is used to start your Java program. Replace //@ECHO OFF// with //@ECHO ON// and insert PAUSE at the end of the file. Save the modified //RunJava.bat// and select //DOS Window// from the [[:start#window_menu|window menu]]. This opens a console window with the folder of RunJava.bat as current folder. Type in RunJava.bat and analyse the error messages.
 **10. Is it possible to use a dark background color to relieve the eyes?**\\
-Yes, select the ''space'' element in the [[Configuration#colors|color configuration]] and right click on the desired background color.
+Yes, select the //space// element in the [[Configuration#colors|color configuration]] and right click on the desired background color.
 **11. How can I integrate a jar file with useful classes in my projects?**\\
-Select ''Edit'' for ''Classpath-User'' in the [[Configuration#interpreter|interpreter configuration]] and add the jar file.
+Select //Edit// for //Classpath-User// in the [[Configuration#interpreter|interpreter configuration]] and add the jar file.
 **12. Deinstallation doesn't work. What can I do?**\\
-If deinstallation with the setup program doesn't work just delete the Java-Editor folder. Then open the registry with ''regedit'' and delete the hives HKEY_LOCAL_MACHINE\Software\JavaEditor and HKEY_CURRENT_USER\Software\JavaEditor.
+If deinstallation with the setup program doesn't work just delete the Java-Editor folder. Then open the registry with //regedit// and delete the hives HKEY_LOCAL_MACHINE\Software\JavaEditor and HKEY_CURRENT_USER\Software\JavaEditor.
 **13. During compilation the Java-Editor switches between text and graphical screen.**\\
-In this case, the fullscreen mode is enabled for the console. You can check this by opening a console by executing the ''cmd'' command.
+In this case, the fullscreen mode is enabled for the console. You can check this by opening a console by executing the //cmd// command.
-Press Alt+Return to switch from fullscreen mode to window mode once, then right click on the window title and select **properties''. In the options tab select the window mode to make it permanent.
+Press Alt+Return to switch from fullscreen mode to window mode once, then right click on the window
+title and select //properties//. In the options tab select the window mode to make it permanent.
 **14. How can I get code completion for foreign classes?**\\
-You need the JavaDoc documentation for the foreign classes. Open [[Configuration#documentation|documentation] in the configuration and use ''Edit'' for ''JavaDoc-Folders''. Add the folder with the JavaDoc documentation.
+You need the JavaDoc documentation for the foreign classes.
+Open [[Configuration#documentation|documentation]] in the configuration and use //Edit//
+for //JavaDoc-Folders//. Add the folder with the JavaDoc documentation.
-If the JavaDoc documentation is missing, you can create it if you have the source files. Open the source files in the Java-Editor and call the ''JavaDoc'' command from the start menu.
+If the JavaDoc documentation is missing, you can create it if you have the source files.
+Open the source files in the Java-Editor and call the //JavaDoc// command from the start menu.
 **15. Sometimes the Java-Editor crashes without error message. What can I do?**\\
 Look in your current folder. Is there a file hs_err_pid<number>.log? Then the Java virtual machine caused the crash. Update your Java Runtime Environment to the latest version. http://www.java.com/en/download/manual.jsp
+**16. Why is the GUI-App on my Surface so small?**\\
+Swing-Applications are not DPI-aware. A workaround is described at:
+https://stackoverflow.com/questions/30555401/java-disable-dpi-aware-not-working\\
+Use Java FX instead of Swing.
+**17. Why does the debugger don't show parameters and local variables?**\\
+You need the compiler parameter "-g". Set Java compiler parameter to standard ("-deprecation -g) in the configuration.
+**18. How can I use the serial interface?**\\
+The package jSerialComm.jar is integrated via Classpath-User. A description of the API is available at https://fazecast.github.io/jSerialComm/
+**19. Why doesn't the download work during the update?**\\
+A change in Windows is responsible for the fact that the download no longer works up to version 19.31.
+Download the current version and install it over your previous version.