I make an Application in java and draw rectangle. When I search from combobox the rectangle is under the combobox and when I close combobox some parts of the rectangle which was under the combobox is deleted. How can I make rectangle to be visible after the combobox was closed.
How do java people handle clean up of their apps when the program receives a kill signal?
For instance, there is an application i connect to which wants any third party app ( my app) to send a "finish" command. What is the best say to send that "finish" command if one does a kill -9 on me.
Hi,
I want to create a Word or RTF file with a table of contents (with links to each section) from Java. From my understanding, iText & Apache POI do not support generating a table of contents. Some clients of the app still use older versions of Word, so I need a library that supports the older Word doc format. Does anyone know how I can do this?
Thanks,
Glen
Is there a way to get all possible values from a MySQL enum column?
The MySQL documentation says the MySQL enum type is returned as a Java String, so I basically would like a way to get all possible strings I can pass when querying a table with such an enum.
I couldn't immediately find anything when I was looking through the metadata returned for such a column, but since enum isn't standard SQL, I'm not sure it's even possible... any suggestions?
This question got me re-thinking about something that always bothered me:
Does Java need tuples?
Do you feel the lack of them in your day-to-day work? Do you think tuples would simplify otherwise complex data structures you find yourself implementing?
Say your application is unresponsive and you cannot attach a debugger to it, as it rejects everything. All you have is a Linux Bash and process id. How would you investigate the issue? What tools would you use? My goal is to better my troubleshooting skills using Java.
This particular issue we had in production, on customer site.
Is there any technique available in Java for intercepting messages (method calls) like the method_missing technique in Ruby? This would allow coding decorators and proxies very
easily, like in Ruby:
:Client p:Proxy im:Implementation
------- ---------- -----------------
p.foo() -------> method_missing()
do_something
im.foo() ------------------> do_foo
p.bar() --------> method_missing()
do_something_more
im.bar() -------------------> do_bar
(Note: Proxy only has one method: method_missing())
hi,
I need the java code snippet for the below logic:
Following is a string and I need to validate the string based on the below condition :
"100 or 200 and 345 not 550 " - Valid string
"abc or 200 and 345 SAME ** 550 " - Not a Valid String
1 . the operands(eg 100,200 ..) should be positive numbers
2 . the operator should be and/or/not
Thx
This post is similar to this post, but not exactly, so I'm asking this question.
How does one go about, From a Java WebStart app:
launch a new browser window with a target URL?
bring an existing browser window into
focus with a target URL?
Is the solution OS/platform independent? Does it matter which browser you're talking to?
Hi,
I am getting the following error when deploying an application on JBoss 4.2.1
7:05:59,673 ERROR [Application Name]StandardWrapper.Throwable
java.lang.IllegalStateException: Application was not properly initialized at
startup, could not find Factory: javax.faces.context.FacesContextFactory
I browsed the net and I found many posts which suggested to add an entry in web.xml but that entry was already there. And all the required libraries are there in web-inf.
So any solutions anybody ?
hello!
I need to extract the zipcode from file's line.
each line contains an adress and is formatted in a different way.
eg.
"Großen Haag 5c, DE-47559 Kranenburg"
or
"Lange Ruthe 7b, 55294 Bodenheim"
the zipcode is always a five digit number and sometimes follows "DE-".
I use Java.
Thanks a lot!
hey folks,
Can someone help me with this Java problem?
I want to write a method that takes two strings as arguments and returns true if each character (including space and punctuation) that appears in one string also appears in the other.
Thanks
What is the best way to capture a kill signal in java without using JNI. I did discover the sun.misc.Signal and the sun.misc.SignalHandler and the warning of the possibility of being removed in the future releases.
Would using JNI to call a c lib be the only option i have?
I have the datepicker component in the format of MM/dd/yyyy, But I want to create date picker in java the form of dd/MM/yyyy. So where can I get the suggestion or related solutions. Please give the basic idea about that.
Thanks in Advance..
I have a java application that has an icon in the tray of the menu bar at the top of OSX. I've been able to remove the icon from the dock when the application is "minimized to tray", but it still appears when I command-tab to switch between my running applications. I'd like to hide it from there too, but I'm not sure how to do that, so I would appreciate any advice
Thanks!
Hi,
Can somebody point me to some tutorials and best practices that show to make a build from source code for a java desktop / jee web application ?
I want to learn what needs to be packaged as a war/jar from source and how it must be structured?
br
/jon
In Java an anonymous inner class can refer to variables in it's local scope:
public class A {
public void method() {
final int i = 0;
doStuff(new Action() {
public void doAction() {
Console.printf(i); // or whatever
}
});
}
}
My question is how is this actually implemented? How does i get to the anonymous inner doAction implementation, and why does it have to be final?
I know this is not possible but can anyone provide a theory as to why Java chose not to support this? I am asking because I just ran into a situation where I think it would be nice to have.
I want from my java code to open word document. But not just to open the document but also to open on exact page or paragraph.
Any ideas or guidelines?
Thanks in advance!
I just want that my program or method should run at specific date and time.
i have heard about Timer and TimerTask in java api. But don't know exactly how to use it.
Hi All
To build a java-based GUI using jsp and servlets, what are the different factors that go into selection of frameworks like AJAX, JSF, Struts 1/Struts 2 etc.
Also for each of the above pls throw some light on, what are the libraries, toolkits and IDE which are available?
Thanks.
Is there a way/tool to auto convert Java source code from using raw types to using generic types?
I have some legacy code with 677 references to raw types:
ArrayList 47
Vector 420
Hashtable 61
Enumeration 64
Class 7
Iterator 78
TOTAL 677
Now I could manually look through the code to infer the generic types and replace, but that is going to take a long time.
can any one give me the source code for mp3 streaming blackberry java application with play/pause, volume slider controls... with background too...
thanks in advance.
:)