Hi all,
I want to genrate following JSON dataobject using org.json.simple.JSONObject, how to do it in java?
{
friends : [
{
name: 'David',
interests: 'Cooking',
},
{
name: 'Charles',
interests: 'Hiking',
},
{
name: 'Mary',
interests: 'Football',
},
]
}
If code snipet is provided then that will be really helpful!
Regards,
Abhi
In Java, an array IS AN Object. My question is... is an Object constructor called when new arrays is being created? We would like to use this fact to instrument Object constructor with some extra bytecode which checks length of array being constructed. Would that work?
I am using JNI to initialize classes in my jar files present at the classpath. But created executable uses java and displays ugly command prompt when my program starts. I want to configure my JNI to use javaw instead. How can I achieve it?
Platform: Windows 7
Do you know a tutorial how to create a CXF web service from existing Java code and embed it in Tomcat, and also generate a wsdl file so that any .NET system would be able to generate client code easily?
I miss that WSDL creation point in, for example this
http://www.ibm.com/developerworks/library/ws-pojo-springcxf/
tutorial. No wsdl file is generated. But still it should be present in my case to provide system interoperability.
Super constructor invocation definition:
[Primary.] [NonWildTypeArguments] super ( ArgumentListopt ) ;
A super constructor call can be prefixed by an Primary expression. Example (taken from JLS):
class Outer {
class Inner{ }
}
class ChildOfInner extends Outer.Inner {
ChildOfInner() {
(new Outer()).super(); // (new Outer()) is the Primary
}
}
Does a Primary expression exist that makes the call to super() the invocation of a constructor of the calling class? Or Java prevents that?
Hi All,
I have a JAR on the build path of a medium sized Java application and I would like to know where it's used. At the most basic level if someone could tell me how to 'Find References' for a Jar that would be great.
Whilst I'm looking at dependencies it would be great to find a tool that would map all of my package / external library usages and graph them. I used to have a free plug-in for eclipse that did just that but I haven't been able to rediscover it.
Thanks,
Gav
Hello,
How can I clone Array List but also clone its items in Java 1.5?
For example I have:
ArrayList<Dog> dogs = getDogs();
ArrayList<Dog> clonedList = ....something to do with dogs....
And I would expect that objects in clonedList are not the same as in dogs list.
Thanks for any answer!
Hello all,
When running a thread in Android/Java:
public void run()
{
while (running)
{
if (moreTasksToExec())
{
task = getNextTask()
task.exec();
}
}
}
Is it OK to let it run and not using a semaphore to block while no work needs to be executed?
I am only using one thread, so I need no inter-thread synchronization.
how to take user input in Array using Java?
i.e we are not initializing it by ourself in our program but the user is going to give its value..
please guide!!
I have a Class<? extends Annotation> and tried calling newInstance() but Java yelled at me for the obvious reason that I can't instantiate an interface. But I know frameworks like EasyMock are perfectly capable of instantiating interfaces. What would it take to get a completely dumb Annotation instance out of my Class?
I'm developing a website that uses some complex computations (NLP-related). My customer wants to have "debugging" webpages for some of these computations where he can run them with arbitrary input and see all the intermediate results that occur during computation.
Before this request all of the computations were encapsulated in beans and intermediate results were logged into general log.
What is the best way to capture all these results on Java level to render them as webpage?
I'd like to communicate with a USB device under Windows and Java but I can't find a good library to do so. I don't want the user to have to install any extra hardware or device drivers to make this work. That is, I want to be able to interact with USB just like other Windows applications do.
I am familiar with jUSB and JSR 80 but both seem to be dead projects (at least for Windows).
We use socket.send(packet) function in java to send a "packet" to a given port.
My problem is that i have to send a packet to a shutdown system using UDP protocol.
The problem with send() function is that first it verifies whether the host IP is
multicast or not. Now my local area network is of broadcast type. So i am having
problem is using this function.
can anyone please give me a way ?
Hi guys.
First I want to say is that I am 37 years old and not from programmer background (actually from biology). And my question is should I start learning Java? I have coded in PHP and JavaScript for a year and a half. Every answer would be appreciated.
Thanks in advance
Bobi.
I have a xml document like this rootXMLDoc=<root></root> . I need to insert paramxmlDoc= <parameter par='1'>abc</parameter>. how to insert paramxmlDoc to rootXMLDoc in java.?
In Python, I can do this:
>>> import string
>>> string.letters
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
Is there any way to do something similar in Clojure (apart from copying and pasting the above characters somewhere)? I looked through both the Clojure standard library and the java standard library and couldn't find it.
How can I get client side information using either Javascript or Java Servlets?
Client side information such as client's computer name, its IP Address etc.
Thanks in advance.
I'm trying to encourage a best practice of not catching general exceptions in Java code. eg:
try {
...
} catch (Exception e) { // bad!
...
}
Is there a way to flag this as an error/warning in Eclipse?
I know PMD picks this up, but I'd rather avoid integrating it into everyone's build environment at the moment.
Dear All,
I am new to MySql database. I've large table(ID,...). I select ID frequently with java code and.And that make a heavy load on transaction
select from tableName where ID=someID
notes:
1.Database could be 100,000 records
2.I can't cache result
3.ID is a primary key
4.I try to optimize time needed to return result from query.
Any ideas for optimization ?
thanks in advance
Simple example: we have string "Some sample string Of Text". And I want to filter out all stop words (i.e. "some" and "of") but I don't want to change letter case of other words which should be retained.
If letter case was unimportant I would do this:
str.toLowerCase().replaceAll ("a|the|of|some|any", "");
Is there an "ignore case" solution with regular expressions in java?