I need to access the Serial Ports with Java in Windows Vista and FreebSD
is there any third party Solution to do that?
I understand Sun doesn't have a solution for that
Is there a way to annotate an anonymous inner class in Java?
In this example could you add a class level annotation to Class2?
public void method1() {
add(new Class2() {
public void method3() {}
});
}
I'm searching for a tool, which compiles a JSP file into a Java file without using a servletcontainer like Tomcat or something else. Can anyone help me out?
I have some Domain classes such as Student, User etc which are used on server and client (gwt) sides.
Can I exclude this domain classes to separate maven-module, so I can add this module as dependency to other maven-modules (i.e. add this module as dependency to maven-module which contains gwt related stuff, so this domain classes will be generated to JavaScript, and add this module as dependency to "normal" (not gwt) Java maven-modules, so this domain classes won’t be generated to JavaScript)?
I was studying the legacy API's in the Java's Collection Framework and I learnt that classes such as Vector and HashTable have been superseded by ArrayList and HashMap.
However still they are NOT deprecated, and deemed as legacy when essentially, deprecation is applied to software features that are superseded and should be avoided, so, I am not sure when is a API deemed legacy and when it is deprecated.
I have a jar that runs forever (infinite loop with socket listening thread) and need it to run in the background at all times. An example would be: "java -jar test.jar" How do I do this? Thanks in advance!
Can anyone help me? I am currently using eclipse java ide, and would like a plug-in that will automatically look at my classes and draw up a class diagram in UML.
any suggestions?
Could someone recommend a good and inexpensive software synthesizer which generates really good piano sound (sample-based); support for other instruments is not required. OS: Windows or MacOS. Java interface would be a great asset.
I have an Android game that has an activity for the menu, and then another activity for the game that creates a SurfaceView and Thread to deal with canvas drawing and game logic. When you exit the game and start it up again too much or if you open and close the keyboard (thus restarting the activity), the game runs out of memory, usually when loading a bitmap:
java.lang.OutOfMemoryError: bitmap size exceeds VM budget
How can I keep all my images in memory without loading them again when the game changes state, or how can I release them from memory and let them reload when the game is restarted?
I want to do AES CBC encryption in Java. I'm using javax.crypto. After I have the Cipher initialized, do I only need to call doFinal on the clear bytes to properly encrypt it? Or do I need to do something with update?
Documentation says update:
Continues a multiple-part encryption
or decryption operation
and doFinal
Encrypts or decrypts data in a
single-part operation, or finishes a
multiple-part operation
what exactly do they mean by multiple-part encryption?
I need to write two versions of the same application, one in .NET and the other one in Java.
So I'd like to write a single test suite, and then use it against both codebases.
Which testing tool would you advise me to use?
Hello,
I'm currently having some issues with a Java application I'm developing. Namely the JVM is crashing with a segfault. I'm trying to locate the hs_err.log file which should contain some helpful info about the issue.
However, I can't find this file. I've used find, locate, etc, and nothing.
Any ideas on why the log file isn't being generated?
Hi,
I've switched my webserver from tomcat to jetty and encounter a "java.sql.SQLException: Io exception: Connection reset" when back from idle time (eg. i go out for a while) :(
This issue doesn't appear when i use tomcat. Does it come from jetty or i've done something wrong ?
Thank you!
Consider a private method which is called from JNI and not used otherwise, generating a compiler warning about an unused method:
private void someMethodCalledOnlyFromJNI() { // WARNING: method is never used
// ....
}
This is some legacy code in Java 1.4 - so no dice on @SuppressWarnings.
What hack would you use to suppress this compiler warning?
I've to create a dataset from some text files, writing them as vectors of features.
Something like this:
doc1: 1,0.45 6,0.001 94,0.1 ...
doc2: 3,0.5 98,0.2 ...
...
each position of the vector represent a word, and the score is given by something like TF-IDF.
Do you know some library/tool/whatever for this? (java is better)
I’d like to know about the computer science. Is that a science or art ?Then what about the Information Technology ? What can be computed and What cannot be computed ? and I'd like to know about the Legal java code.
How to identify which server side script language was used with a web site?
Asp.Net? PHP? RoR? Java? or other?
For example, Which server side script language was used with stackoverflow.com?
I am running CentOS 5.5 x86_64 with JDK 1.6, Eclipse Galileo, and the 0.9.7 ADT is installed; however, after installation, the Android project type is not available. I have checked in the installed packages list and it is installed. Anybody encounter this problem before? Could it be due to my use of the 64-bit java VM that is installed on my system?
In Java/C++, for example, do you casually say that 'a' is the first character of "abc", or the zeroth?
Do people say both and it's always going to be ambiguous, or is there an actual convention?
I cannot see this behavior in JBoss 4.2.3. If I try to call addCookie() on HttpServletResponse and my cookie value has accented characters in it (ex. ç) I get this exception:
java.lang.IllegalArgumentException: Control character in cookie value, consider BASE64 encoding your value
Does anyone know what change in JBoss 5.1.0 could be causing these problems?
I am very new to Hibernate. I have MySQL database and mapped pojos. What should I do next? I know little bit LINQ to SQL from .NET, and it generates me List of mapped objects.
So basically, what are my next steps after creating POJOS if I want to have List of them and do CRUD operations upon them and data will be also saved in DB not only in java objects ?
kthx
Hi all,
In my Java servlet code, I want to be able to programatically write to the jetty access log. I am aware that jetty will automatically log every incoming HTTP request to the access log. However, my servlet needs to occasionally append it's own line to the access log. Has anyone here done something similar?
Thanks!
Consider the following Java source:
if( agents != null ) {
for( Iterator iter = agents.keySet().iterator(); iter.hasNext(); ) {
// Code that uses iter.next() ...
//
}
}
The agents is a HashMap.
Why does the for statement sometimes throw a NullPointerException?
Thank you.