How can I run solr on a windows server, so it starts up automatically?
I run it with:
java -jar start.jar
but I need the server to do this automatically.
Hi,
In android, is it recommend to use static variable?
E.g, implement a Singleton pattern in Java, I usually do:
private static A the_instance;
public static A getInstance() {
if (the_instance == null) {
the_instance = new A();
}
return the_instance;
}
My question is when do that get free by android JVM?
Thank you.
On a webpage, is it possible to split large files into chunks before the file is uploaded to the server? For example, split a 10MB file into 1MB chunks, and upload one chunk at a time while showing a progress bar?
It sounds like JavaScript doesn't have any file manipulation abilities, but what about Flash and Java applets?
This would need to work in IE6+, Firefox and Chrome. Update: forgot to mention that (a) we are using Grails and (b) this needs to run over https.
I already have a solid knowledge of Object-oriented PHP as well as HTML/Javascript/MySQL plus a basis in Java.
Now I would like to implement my projects in an efficient way, whether it is a web project in PHP or an Android application.
My problem is once my code gets bigger I start messing error handling, with form validation etc, and I guess its because of my poor basis in software architecture.
Thanks.
I am using CsvJdbc (it is a JDBC-driver for csv-files) to access a csv-file. I don't know how many columns the csv-file contains. How can I get the number of columns? Is there any JDBC-function for this? I can not find any methods for this in java.sql.Resultset.
For acessing the file, I use code similar to the example on the CsvJdbc website.
I have a convert method, which takes a String and a class as arguments and constructs an object of the given class, which will be returned.
The usage should look like this
Something s = Converter.convert("...", Something.class)
Is it possible to express this with Java generics?
Something like:
public static <T> T convert(String source, ??? TClass)
What would be ????
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!
Hi,
I'm a new user to this interesting forum!
I want start developing an application for android and before starting i want learn about some android features...
The first android feature is how to correlate finger motion on the screen with java...
Are there any source code examples that show how to draw with your finger on an android screen?
Can you suggest a good place for me to download an example?
thanks
I've tried before some Eclipse plugin (I don't remember its name) but it was lacking a lot of features (generics, for example). Is there anything easy to set up that would run on the last version of Java?
Thanks
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.
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?
I decided to store uploaded to servlet pictures in DB. But how to show them in browser (in particular div with css image-background style) without page reload?
In details: I have an full-AJAX web client that works with java servlet.
Thanks.
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 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
Hello..
I'm trying to use hibernate to fill my jsf selectonemenu in ApplicationBean (in Liferay). The problem is that I got Initial SessionFactory creation failed problem. Before putting my functions in the applicationbean I was setting them in sessionbean and I got no error.
For now the full error Initial SessionFactory creation failed.java.lang.ClassCastException: org.hibernate.type.StringType cannot be cast to org.hibernate.type.VersionType
Thanks
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?
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'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?
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() {}
});
}
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’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.
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)
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?