Is it somehow possible to hook keypress event in background application on Symbian running smartphone? And is it possible to create any background application with Java ME?
I have a big program in Java that uses multithreading. In some cases, the program starts using 100% of three cores of my eight core system. In normal use, the program use all cores at 1-2%. How can I find the class that's overloading cores?
I am reading about SURBLs (known spam hosts), for purpose of classifying spam, as a batch process. Main access method seems to be via DNS lookups. I was wondering what's the usual way to do such lookups from Java code. Since this is a batch process with no strict performance requirements, I think most important feature would just be simplicity.
Is there a way I can post photos to my facebook profile using my username and password only? The code may be in PHP or Java. I dont want to make a facebook app and allow it to post photos to my profile.
Any help is much appreciated. Thanks in advance.
Hi,
While I was working on my project, I got a requirement that, I need to get the system user documents folder( like "My documents for windows and Documents for Linux). I need to get it for all the operating system. How can I do this. I can get the user root directory by using System.getProperty(user.home). I need solution for this requirement using Java. Any one please help me.
Im trying to implement and realtime audio streaming swing desktop app . trying to get bytes of audio using java.net classes and then feeding it to play .
Just trying blind punches undersea water thinking the water tank will crack :((
help or any suggestion ?
My Java.app broadcasts a packet on the network as soon as it starts up. Everytime I start this app, the MAC asks me do I want to allow network connections blah..blah.. Can I use info.plist or something to allow network access to this app and not bother the user who has trustingly downloaded and installed my app.
Thanks
Hi
I'm new to java.
I'm trying to use some dynamically loaded classes in my application.
The application doesn't know classes , Just it try to load a class by name that its name came from input.
It doesn't know class (So I can't use casting) but just needs to call some methods of that class (every class should have that methods).
I thought about interfaces but I don't know how.
How can I call those methods?
Thanks
Is it to possible to capitalize the letters in a Textfield as they are being typed by the user in Java?
E.g. The user would type 'hello' and 'HELLO' would appear in the Textfield.
(Odd request and I don't like the idea either.)
Please advise me the difference between two ways of declaration of java constructor
public class A{
private static A instance = new A();
public static A getInstance() { return instance;
}
public static void main(String[] args) {
A a= A.getInstance();
}
}
AND
public class B{
public B(){};
public static void main(String[] args) {
B b= new B();
}
}
Thanks
Is there a representation of a graph in Java standard libraries, like there is in the boost library in C++? Is there a graph representation which is a standard in the business?
I've just made a program with Eclipse that takes a really long time to execute. It's taking even longer because it's loading my CPU to 25% only (I'm assuming that is because I'm using a quad-core and the program is only using one core). Is there any way to make the program use all 4 cores to max it out? Java is supposed to be natively multi-threaded, so I don't understand why it would only use 25%.
From what time I've spent with threads in Java, I've found these two ways to write threads.
public class ThreadA implements Runnable {
public void run() {
//Code
}
}
//with a "new Thread(threadA).start()" call
public class ThreadB extends Thread {
public ThreadB() {
super("ThreadB");
}
public void run() {
//Code
}
}
//with a "threadB.start()" call
Is there any significant difference in these two blocks of code?
Do you know a good guide for Java, such as "dive into python" for python?
If I searched google I expect I would find tons of random guides, but trying them all until I found a good one could take ages... that's why I am asking: do you already know one in particular? one you KNOW is good?
I already know C, PHP and a bit of Python, if that matters.
I am trying to dislplay a kannda character in a Java app.
String fonts[] = ge.getAvailableFontFamilyNames();
This shows that there is a font family by name "BRH Kannada"
Font f = new Font("BRH Kannada", Font.PLAIN, 20);
and then I do
button.setFont(f);
now when i set the button text, i have to ideally get the text on button to use the BRH kannada font.
However, what and how should i give the string as?
Rgds,
AJ
Hi
There are several PHP or js code formatting libs out there -- does anyone know if similar libs exist in Java?
Ie., Given a string of code, return a formatted string with syntax colouring etc.
It'd be ideal if it auto detected the language, but I might be pushing my luck there...
Hi,
I am trying to send a file through a java socket and receive it through another. However, this happens:
Send Content:
/*
This is simply a file to transfer
*/
Received:
¨Ì
In which class the length variable is defined in java(one used for printing array length)?
Will I be able to see it defined say in Object class?
EDIT : Why was this field so designed(any thing related with security or memory efficiency)?
Actually I'm working with BufferedImages, that provide me pixel values in int type.
Do you know a Java object to represent an image that the pixel value in double or float type?
I am using the following:
java.awt.Container.add(Component comp, Object constraints)
How do I specificy the constraints object? I need to be able to place a component within the container.
Oh and my class extends JInternalFrame if this helps...
I need to specify coordinates to place the component within the container
Hey guys,
I'm trying to call a java implemented web service (using the NetBeans IDE) from javascript. I have read a lot about jQuery and AJAX but i cant seem to get a hand on it.
suppose my web service WSDL is found at: http://localhost:8080/MICE_Server/MapEditorService?WSDL
web method name : sayHello(String name) which returns a string.
how would i be able to to this in javascript?
thanks in advance for ur help!!