I have a JPA project which used to work. This month, I have added some data in my database. When I run the usual job (I used to run on preceeding months), I get this error:
Can someone suggest me how to implement a pop-up window in Java Swing. I want the pop-up window to be a modal window (user cannot return to the main window when the 开发者_如何学Gopop-up is open).
I was looking through a code tutorial just now, and found something interesting -- the import static feature introduced in JDK 5:
normally I would use JaxB, XMLBeans or Simple to convert a XML file to a Java Object. In this case I can however only use Java5 and no external libraries (for several reasons开发者_如何学Python).
I just noticed that JDK 6 has a different approach to setting a default TimeZone than JDK5. Previously the new default would be stored in a thread-local variable. With JDK6 (I just reviewed 1.6.0.18
I h开发者_C百科ave a distributed JBoss-based application that shows a buggy behavior when compiled and run with Java 1.6. It shows an another bug when compiled with Java 1.5 and run with Java 1.6. But
Our web applica开发者_如何学运维tion is JDK 1.5 compliant, and is running succesfuly on WebSphere 6.1
What do T and S mean? 开发者_JS百科public void main(String... abc) ;what does ... mean? Is ... called generic as well?
I get confused when I come across a generic method of this sort. public static <T> T addAndReturn(T element, Collection<T> collection){
I\'m currently working on a project that uses the js开发者_JAVA百科on-taglib-0.4.1.jar library to do some json communication between front and back end.
加载中,请稍侯......