I have 3 panels. One is the main panel which holds 2 smaller panels. For the main panel, I used setPreferredSize(new Dimension(350, 190)); For the smaller left panel, I used setPreferredSize(new Dimension(100, 190)); For the smaller right panel, I used setPreferredSize(new Dimension(250, 190)); but the smaller panels remain t...
.NET 4.0 introduces new support for dispatching invocations on dynamically typed objects. As far as I can make out, this involves: no change to the CLR new types in the BCL new compilers that convert new syntax into usages of the new types In the Java space, folks are discussing adding a new dynamicinvoke bytecode to the JVM such th...
Hi, Is there a way to find out which record caused such a violation in Hibernate? Normally you add objects to session and at the end you persist them. If such an error occurs it takes a while to track down which record has violated the constraint. Is there way to find out which record caused (either to "toString() in case of new obje...
I'm trying to write a filtering function for an image, but I can't seem to wrap my head around (or remember) how to transfer all that math theory into code. Lets say I have the following function, where the ints inside the arrays are integers between 0 and 255 (pretty much grayscale pixels to keep it simple). private int[][] resample(i...
Strange thing... I have a binding definition user-wrapper.xml: <binding> <include path="core-wrapper.xml" /> <include path="user-composite-entity.xml" /> <mapping name="users" class="UserWrapper" extends="CoreWrapper"> <structure map-as="CoreWrapper" usage="optional" /> <collection field="users" usage="optional" ...
What is the difference between a .war and .ear file? ...
I'm not sure if this is possible in Hibernate but it would be really great if it was :) I've not actually got past the conceptual stage with this but I'll explain as best as I can. I want to make use of Oracle Spatial features to do proximity based searching. Imagine I've got a Location entity which stores a latitude/longitude value. Th...
I have a struts 2 application and a toplink persistence provider running on tomcat 6.0.20 and a MySql 5.1.38 server on a GNU/Linux machine. After committing the data the when i go to retrieve it the data it has disappeared from the database. I do a em.commit() and em.flush() after my queries have executed. How do they disappear? I am u...
I'm working on a Java Swing application. I have a button whose action runs a query on a database and then plots the results. These commands are performed from the listener on the Run button. As I understand it, this means that the thread running at this point is from the EventQueue. Given certain input, I need to halt processing an...
C# has a good momentum at the moment. What are the features that you would need to have in order to switch (or return) to Java? It would also be quite useful if people posted workarounds for these for the current Java versions, e.g. Nullables being wrapped around custom classes, to make this a much more interesting wiki. ...
I mean, I want the logger name to reflect the source.jsp file, no matter if it is included in another file or compiled to a class or whatever. ...
I get a weird error ("The process tried to write to a nonexistent pipe.") if I stop reading from piped input, from a program that works fine for non-piped input. How can I avoid causing this error? code: package com.example.test; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class...
So, I'm working on a plugin at work and I've run into a situation where I could use a ContentProposalAdapter to my benefit. Basically, a person will start typing in someone's name and then a list of names matching the current query will be returned in a type-ahead manner (a la Google). So, I created a class IContentProposalProvider which...
I have some JSP code, which writes a tree representing hierachical data. This data is represented using nested layers. In the JSP code there are many code snippets similar to the following code (which outputs as many closing div tags as is the numerical value of variable differenceAmount): <jsp:scriptlet> int differenceAmount = pr...
I have a website, and username and password, and usually I will login the website with the username and password, and select some items in check boxes and submit them to execute actions. but right now i need to write a application to select the checkbox by some keywords and submit them automatically. Do anyone have good idea ? I used ...
Do Java REST frameworks like Restlet and Jersey allow one to send a file as input to a web service? This would encompass the client sending the file and the server then receiving and processing the file. ...
Hai I have an application in which I have a JTable with line breaks(pressing Enter key while editing) included in each and every cell.The problem is when I copy the contents from my JTable to Excel I am not getting the contents in same format as in my Jtable(with line breaks) to my excel that is with line breaks.Is there any way to solve...
i am using clear-case source control, i created my vob repository(which has my java source code) on the network drive, when i rum my javac compiler on the source it compiles fine but it is generating class files in lowercase where it should start with uppercase letter. i have seen the code every thing mentioned perfect. then i tried to c...
Are there any gotchas in JDK 6 which did not exist in earlier versions? I am interested in finding out some surprising changes like the following one in the way Timestamp.valueOf() works. Timestamp.valueOf(), when provided with a timestamp which contains a date or a month with a single digit. eg. 2009-9-20, 2009-9-3, 2009-12-4 etc., beh...
Can any one suggest me an open source face recognition framework in Java? ...