Portable Development Environment Not that you’d want to run from a USB flash drive, but you can bundle Eclipse and the JDK all in one directory, as described here, to have a nicely self-contained development environment: How-to: Run Eclipse or Aptana from USB Drive You can toss in a few more tools too if needed: … Read more
You can see the implementation of hashCode function in java.util.ArrayList as public int hashCode() { int hashCode = 1; Iterator<E> i = iterator(); while (i.hasNext()) { E obj = i.next(); hashCode = 31*hashCode + (obj==null ? 0 : obj.hashCode()); } return hashCode; } It is one such example and your Eclipse generated code follows a … Read more
I’ve never had this problem in Linux, but I recently had it in Windows. This is what I did: Go to http://www.polarion.com/products/svn/subversive/download.php (the link that Dollyn posted) Under the latest Release, copy the Subversive SVN Connectors URL The current URL for Eclipse 4.3 Kepler: http://community.polarion.com/projects/subversive/download/eclipse/3.0/kepler-site/ In Eclipse, go to the Help menu → Install New … Read more
Make sure your eclipse environment is using JUnit 4. JUnit 3 doesn’t make use of annotations (it uses the old extends TestCase style) There are few things to double check: Window > Preferences > Java > JUnit Are you seeing junit4 or junit3 imports? If that looks good, make sure the project itself is using … Read more
You need to delete the .syncinfo files. This is easily done (in most cases) by closing and opening Eclipse, however you can also do so manually as in the following: To delete the cache, close Eclipse. The cache is stored in: [workspace]/.metadata/.plugins/org.eclipse.core.resources/.projects/PROJECTNAME/.syncinfo So you can just find and delete all files named .syncinfo in [workspace]/.metadata/.plugins/org.eclipse.core.resources/.projects … Read more
Make sure you have your editor set to use spaces instead of tabs. Select all text and hit CMD + I on mac or CTRL + I on windows.
From Eclipse’s main window, choose Window and then Preferences. Then choose Java, Editor and then Typing to get the following screen: and un-check {Braces}. Tested on Eclipse Helios.
Verify that you can start your application like that: java -cp myjarfile.jar snake.Controller I just read when I double click on it – this sounds like a configuration issue with your operating system. You’re double-clicking the file on a windows explorer window? Try to run it from a console/terminal with the command java -jar myjarfile.jar … Read more
I got the same problem and this is how i solved. : Right click your project, choose Run As -> Maven install. Observe the output console to see the installation progress. After the installation is finished, you can continue to the next step. Right click your Spring MVC project, choose Maven -> Update Project. Choose … Read more
See Window / Preferences / Java / Compiler / ErrorsWarnings / Unnecessary Code / Value of parameter is not used In old versions (before Eclipse Juno?) the setting was called “Parameter is never read”. Note: If there is a valid reason for not using a parameter (e.g. it is used via reflection), you can suppress … Read more