[ The Java FAQ Daily Tips, weekly publication ]
4 March 2003|
Foreword: Excuse me for
possible mistakes. English is not native language for me.
In this issue:
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By using the WebWindow in your application,
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I have a piece of code (thread) which runs every x seconds and causes high CPU
load. How could I decrease it?
You can use static method yield() in the Thread. This method causes the
currently executing thread object to temporarily pause and allow other threads
(in OS and other programs) to execute.
My program wants the capability to place the file physically on to the client
machine. Can I use FTP? How? Do I need to read protocol description and
implement it from scratch?
You can use open source NetComponents package. NetComponents TM provides easy
access to FTP, NNTP, SMTP, POP3, Telnet, TFTP, Finger, Whois, and other
frequently used Internet protocols. Version 1.3 features newly added BSD R
NetComponents TM provides one-stop shopping
for all your IETF protocol Java programming needs. Access FTP servers from your
Java applications, send email from your Java applets, or automate access to
Telnet accessible resources. You can do it all with NetComponents!
find it here:
feel free to examine the online API documentation and to download the latest
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I need help again, how no! I'm writing an
application which generate SVG files. I want to compress this files to use the
.svgz extension. I know that it possible use gzip to compress the file, but I
wonder if I can use some Java class to do it.
I have tried this
I have to design a
simple prototype interface that performs a simple control function. The function
is to control a robot which moves up, down,
left and right. It only has to be a simple interface which operates from
the command window but it needs functionality as people have to test it work.
Can you offer me any suggestions on coding for this as I'm
really stuck, thank you.
Save an image-object
as image on the web server..
For a little kids-homepage
I have written an applet, within you can "paint" with the mouse. But now I want
to store the image on the server. There is a cgi-script I can call to upload a
file (i.e. http://domain.com/cgi-bin/store.cgi?file=image.jpg). How can I do
this from the applet? The problem is that I haven't a file "image.jpg" that I
could send. In the applet there is only an Image-object. Is it possible to save
the file via the cgi-script? Can
anybody point me in the right direction?
Problem while trying to make an executable
If have downloaded MS SDK for Java 4.0 and
I wanted to make an executable. After reading some documents about Jexegen I
have to typed this:
jexegen /main:Studieresultaten /out:Sresult.exe /w
Looking at the details I can see that all the classes has
been added. But I always get the following error:
Warning: Main class
specified but main class file was not found.
Studieresultaten.class has been added!!!!
I have searched on Google for
this error, but I can only find either a post that has not been replied or a
anyone help me???
Importing .swf Flash file into Java
AS far as I understood there is a Java package that is for
supporting Java and flash collaboration ))
For example how can I import
flash file into Java application(standalone) or sending information from Java to
Flash and opposite.
tell what the package is and where can I download it
I would like
to make a JFileChooser that finds the directory to the movable disk. How shall I
JFileChooser chooser = new JFileChooser( new File(xxxxxxxxxx) );
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