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Eclipse editor won’t open

My Eclipse cannot show the editor window. Error: Could not open the editor: The editor class could not be instantiated. This usually indicates a missing no-arg constructor or that the editor’s …

jsoup posting and cookie

I’m trying to use jsoup to login to a site and then scrape information, I am running into in a problem, I can login successfully and create a Document from index.php but I cannot get other pages on the site. I know I need to set a cookie after I post and then load it when I’m trying to open

Java static serialization rules?

I’m working on a save state serialization with a few static methods and fields. I could have sworn though that serialization and static’s caused mayhem. Should I make all static’s transient? And will inflating the calls restore the statics as normal? Answer statics are implicitly transient, …

Why jframe hides taskbar when maximized?

I’m using setUndecorated(true); and getRootPane().setWindowDecorationStyle(JRootPane.FRAME); in my jFrame. This works great but now when I maximized my frame it spreads all over the window even taskbar is not visible. What can I do to make frame not to hide taskbar? Also when I maximize minimize my fram…

About unsynchronized & synchronized access in Java Collections Framework?

Can anyone explain what is unsynchronized & synchronized access in Java Collections Framework? Answer Synchronized vs unsynchronized access doesn’t have to do with the Java Collections Framework per see. Synchronized access means that you have some sort of locking for accessing the data. This can be…

How to run a java class with a jar in the classpath?

So, I can do this very well: if ./mypackage/MyClass.class exists. I can also happily do this: if the class file exists in the appropriate part of the jar. Easy stuff. But I can’t for the life of me manage to do something like this: where ./mypackage/MyClass.class exists, and where ./utilities.jar exists…

java SimpleDateFormat

in Java, how to parse a date string that contains a letter that does not represent a pattern? “2007-11-02T14:46:03+01:00″ String date =”2007-11-02T14:46:03+01:00”; String format = “yyyy-MM-ddTHH:mm:ssz”; new SimpleDateFormat(format).parse(date); Exception in thread “m…