Applet programming with Netbeans?

Well I have been wanting to make a 2D side scrolling SIMPLE game with Java, just as a way for me to get my feet wet and keep practicing programming between classes.
I have been using this guide: http://www.gamedev.net/reference/programming/features/javagame1/
But whenever I make a new Java Application in netbeans and try to follow along, it doesn't work.
I don't mind using notepad and JDK, but in all my classes every program we had to make was able to be made in Netbeans. Alot of these terms like:
public class HelloWorld extends Applet
public void paint (Graphics g)
g.drawString("Hello World!", 50, 25);
I have never even heard of using g.drawString, we always used System.out.printf or println or just print... Also never extended an Applet.
Maybe I am just not up to date enough to start this particular tutorial? I can easily get it to work using notepad, HTML, etc. I also have Java Studio Creator 2 (came with a textbook)

Swing makes it relatively trivial to write an application which will run as either a JApplet or within a JFrame... They're just alternate "top level containers" which contain a JPanel, which contains "all the guts" of your program.
I find JFrames more convenient to work with locally... the downside is that you have to be careful to avoid doing things (like accessing the local filesystem) which the security manager will (quite rightly) object to when it's published as an applet. Read-up on applet security restrictions before you start and you should be right.
Alternately, the JDK ships with an appletviewer.
Netbeans includes an applet-container, specifically to make applet development more convenient... except it would (from my google search) appear to "have a few bugs", like it uses the desktop security manager which would give the developer false positives on what you can do in an applet... and having not used it myself I'm loathe to recommend it.
Cheers. Keith.

Similar Messages

Deployment with netBeans

Hi frnds..
I developed a program with NetBeans IDE, and I want to package it in jar file...with manifest file so dat I can run it with double click.
but I am not able to find the main class...
plz help me out...
thanx.

First of all, the main class is the one who has the "main" method.
To deploy it, create a folder called META-INF. Inside this folder create a txt file like this:
Manifest-Version: 1.0
Main-Class: nameOfYourMainClass
Leave 2 blank lines in the end. Save it and rename to MANIFEST.MF
Now, zip all your .class files, images(if required) and the folder META-INF. Rename it to app.jar.
Double click it and it should run.
PS: If you are using external libraries, add a third line to your Manifesf like this 'Class-Path: urLibrary.jar' and keep the library in the same directory as your application.
If the program does not work, run it through console 'java -jar app.jar' and check the errors.

How to start java applet with netbeans 6.1

hey,
I want to learn how to start java applet (with database) with netbeans.. I'm new to java...can you show me how can i start..if you have any doc about it can you send it to me..thank you..:)

You really should be asking this NetBeans question at the NB site - these forums are for Java language topics, not NB support.
[http://www.netbeans.org/kb/61/web/applets.html]
Almost any NB question you have can be answered by either the NB web documentation or the NB program's Help.

Compiling C++ program with C++ development pack in Netbeans!!!

Hi,
I have Netbeans 5.5 BETA with C/C++ Dev Pack installed.
I am new to Netbeans IDE and trying to use it in Windows XP environment with cygwin installed. I can't get this thing work for C++ compiling.
1. I added "C:\cygwin\bin" (my cygwin directory) to my PATH variable and rebooted.
2. If I start cygwin.exe and compile the same sample programs (HelloApp.cc or Welcome.cc) provided with Netbeans IDE, they compile well and work (ran the exe files under DOS prompt) well too.
3. However, when I try to use Netbeans to compile using the Makefiles supplied along with the source code, it fails with the following message. Can anybody help with this thing? It's really frustrating...
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Running "make -f Makefile clean" in C:\Documents and Settings\sgadde\Netbeans\Welcome2
make -f nbproject/Makefile-Debug.mk SUBPROJECTS= .clean-conf
make: make: Command not found
make: *** [.clean-impl] Error 127
make failed. Exit value 2.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Hi
i have the same problem and i dont find the solutions
only thing it�s my message is different
Running "rm -rf build/Release/GNU-Windows/main.o" in D:\Documents and Settings\Queops\Application2
'rm' is not recognized as an internal or external command,
operable program or batch file.
Clean failed. Exit value 1.
and please
make a better guide
http://cnd.netbeans.org/cnd-installation.html
i do all things say, but dont work to me
i use netbeans 5.5 beta 2 with c/c++ plugin
i install cygwin and put with classpath c:\cygwin\
and path c:\cygwin\
tks

How do you yeploy Java Program (including database) with Netbeans

I need to deploy an application I wrote with NetBeans IDE as a jar file such that it would run on any machine other than the development machine. I used MySQL database in this application and i dont want to have to install MySQL on every machine i install it on. Also, the application makes use of bluecove's bluetooth SDK (a .jar file) How do I do this using netbeans? Anyone?

MySQL will have to be installed where is's used. If you replace it with an embedded version of Derby that could be eliminated.
NB tutorials cover many subjects, including desktop deployment:
http://www.netbeans.org/kb/articles/javase-deploy.html
Further NB questions should be posted to an NB website; these forums are for Java language questions.

Applet use with HTML// also appletviewer question

I am new to the language. I am trying to start an applet in a folder that I created on my hard drive(C:). I have included the following code in my HTML in my folder.
<applet code="NotHelloWorldApplet.class"
width= "300" height= "300">
</applet>
I have already compiled the program; I have the net beans 1_4_2 compiler, and it has compiled without errors.
The code is :
import java.awt.*;
import javax.swing.*;
public class NotHelloWorldApplet extends JApplet
public void init()
Container contentPane = getContentPane();
JLabel label = new JLabel("Not a Hello, World applet",
SwingConstants.CENTER);
contentPane.add(label);
I have also downloaded Plug-In; if that means anything. When I open the HTML folder a grey box appears; then at the bottom of the window it says that it cannot find the file; even though the file exists(I have looked with the file finder and it is in my file directory). Is it in the wrong directory? How does the file folder in windows know how to run and execute a java program with the preceding HTML code. This is the method explained in a current text book that I am using. It tells me to
1. to compile the source code into class files.
I used the compiler and I successfully created a .class file, (obviously the title of the program is .java program, but the class file does exist.
Then 2. add the above code in the HTML program(which I did).
I would like to get applets running but do not know how to correct this problem. Is there more HTML code that I need to run a java program in the folder's code.
Also, the textbook I am using tells me to preview the applet with appletviewer. I loaded the appletviewer into the editing screen and it is a bunch of hieroglyphics. One of two possible problems are that it is not included with the Net_Beans_1.4.2(it was from another download) or the download was contaminated. Anyway, the question I have is; is appletviewer an application that is viable with Net_Beans_1.4.2 and if it is from where and how do I run or execute it to preview my applets before I run them inside an HTML document.
Derk_the_Zeeman
[email protected]

Sounds to me like you're having trouble with NetBeans, not applets or appletviewer. You should consult their docs on how to access their version of appletviewer.
It also sounds to me like you're using the book CoreJava by Horstmann/Cornell.
Notice that they package TextPad with their book. This is for a good reason. It is very easy to be suckered into thinking you know what is going on when you have an IDE that does stuff for you. I know. I programmed in VB for a while, and I thought I knew how to do Windows programming. But I didn't. VB was doing all the work for me while I was drawing boxes on the screen and patting myself on the back. It took several major blows to the ego before I found out that all I really knew how to do was how to draw a bunch of silly boxes.
New programmers should start out with a text editor. They get a better feel of what is going on.
I don't know how NetBeans works -- even now I prefer TextPad over any IDE I've tried. But appletviewer works in the same way the java and javac command works, except that the argument it takes is the name of the html file which contains those applet tags (<APPLET>).
I have some thoughts on your problem:
1) you have an html file somewhere, but you don't know where. It is somehow created in a "window". the tag
applet code="NotHelloWorldApplet.class"
means "look in this directory for the class NotHelloWorldApplet.class" So if the html file you have created is not in this directory, how will appletviewer (or NetBean equivalent) know where it is? (hence, "class not found")
2) Is this correct? You have downloaded the plug-in for your browsers, but you didn't try using your browsers to see the applet?
If so, try this: go to IE or Netscape (or whatever you favorite browser is) and try in IE File-->Open and hit the browse button, or in Netscape File--> Open File
Next, try to find the file "NotHelloWorldApplet.html" or whatever it is you called the "window". Open the html file.
If it doesn't work, check to see if the html file is in the same directory as the class file (repeat procedure, but now look at files of type "All")
3) You can make an html file with notepad. You don't need anything special. Just type in the html code that Horstmann/Cornell include into notepad and save as an html.
Does this help?
:) jen

Applet program execution

Hai ,
i am having one applet program which runs properly if i execute that in normal java desktop project mode(Netbeans).
If I run that in java web project it shows the exception, class not found. What I have to do for this? Can any one tell me?

My problem is
This is my java code
import java.applet.*;
import java.awt.*;
import java.lang.*;
public class AppletExample extends Applet
/*<applet code="AppletExample" width=200 height=200>
</Applet>*/
public AppletExample() {
public void paint(Graphics g)
g.drawString("Good Evening",50,25);
/*public void destroy() {
This is my html code.
<applet code="AppletExample" width=500 height=500>
</applet>
If i type appletviewer AppletExample.html in command window it shows the applet window with Good evening message. but if i double click the html file, in the browser window it shows the following Error.
load: AppletExample.class is not public or has no public constructor.
java.lang.IllegalAccessException: Class sun.plugin2.applet.Plugin2Manager can not access a member of class AppletExample with modifiers ""
     at sun.reflect.Reflection.ensureMemberAccess(Unknown Source)
     at java.lang.Class.newInstance0(Unknown Source)
     at java.lang.Class.newInstance(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Please proceed with me
Edited by: DHURAI on Jul 15, 2009 4:12 AM

Need help coding simple applet program

Hello I'm attempting to learn applet programming in either swing or awt. Whichever is best for current applications. I want to begin by creating my first hello world application. I want to create a simple applet that has two buttons, press button number one and the text "hello world 1" comes up somewhere on the applet, press two and "hello world 2" comes up. can anyone help me with this simple applet? Thnx in advance

http://java.sun.com/docs/books/tutorial/applet/

Java 1.4.2 with NetBeans IDE 3.5 - Error Message, please help

Hello, I have downloaded the "J2SE v 1.4.2 with NetBeans IDE v 3.5 Cobundle" for windows.
I ran the install, everything went fine, but when the install finished it said there was an error and to please refer to the log file.
Here is what the log file says:
"Installing J2SDK..."
"Finished Installing J2SDK..."
(Jul 1, 2003 7:53:14 AM), Setup.product.install, com.sun.installer.InstallJ2sdkAction, err, Error occured while installing [0] -> D:\Program Files\j2sdk_nb\_uninst\custom-install.bat "D:\Program Files\j2sdk_nb\install.log" "D:\Program Files\j2sdk_nb\j2sdk1.4.2\" D: "D:\Program Files\j2sdk_nb\_uninst"
Now when I try to run "NetBeans IDE 3.5" I get an error message:
Cannont load jvm.dll
Does anyone know how to resolve this, I have tried uninstalling and re-installing and I get the same problem.
Thanks,
-Mike

Hello, I have downloaded the "J2SE v 1.4.2 with
NetBeans IDE v 3.5 Cobundle" for windows.
I ran the install, everything went fine, but when the
install finished it said there was an error and to
please refer to the log file.
Does anyone know how to resolve this, I have tried
uninstalling and re-installing and I get the same
problem.
Thanks,
-MikeHi Mike,
Even I got a similar error message inspite of trying to re-install atleast 10 times! So I gave up and did this:
1) I downloded J2SE SDK 1.4.2 seperately.
2) I then downloded JPad Pro IDE (latest version).
Now both are working really fine for me. :-) Could'nt be bothered to try again and again.
Its up to you if you want to get the NetBeans installation done but all I wanted was a good IDE and the latest version of the JDK. I have been using it for the last 3 days and it is working perfectly fine!
Regards :-)
Vijay

Tryin to Profile weblogic with NetBeans Profiler, getting jrocke exception

Hi there,
I am using Weblogic 10, and want to profile a web application on it with Netbeans Profiler. But am getting the following exception upon starting weblogic (Please tell a solution......)
JAVA Memory arguments: -Xms256m -Xmx512m
WLS Start Mode=Development
+.+
CLASSPATH=;C:\bea\patch_wls1001\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\bea\JROCKI~1\lib\to
+;C:\bea\WLSERV~1.0\server\lib\weblogic_sp.jar;C:\bea\WLSERV~1.0\server\lib\weblogic.jar;C:\bea\modules\features\w+
+.server.modules_10.0.1.0.jar;C:\bea\modules\features\com.bea.cie.common-plugin.launch_2.1.2.0.jar;C:\bea\WLSERV~1+
er\lib\webservices.jar;C:\bea\modules\ORGAPA~1.5/lib/ant-all.jar;C:\bea\modules\NETSFA~1.0/lib/ant-contrib.jar;;C
LSERV~1.0\common\eval\pointbase\lib\pbclient51.jar;C:\bea\WLSERV~1.0\server\lib\xqrl.jar;;
+.+
PATH=C:\bea\patch_wls1001\profiles\default\native;C:\bea\WLSERV~1.0\server\native\win\32;C:\bea\WLSERV~1.0\server
+\bea\modules\ORGAPA~1.5\bin;C:\bea\JROCKI~1\jre\bin;C:\bea\JROCKI~1\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS+
+32\Wbem;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\CVSNT\;C:\bea\WLSERV~1.0\server\native\win\32\oci92+
+.+
+* To start WebLogic Server, use a username and   *+
+* password assigned to an admin-level user. For *+
+* server administration, use the WebLogic Server *+
+* console at http:\\hostname:port\console        *+
starting weblogic with Java version:
Listening for transport dt_socket at address: 8453
java version "1.5.0_11"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_11-b03)
BEA JRockit(R) (build R27.3.1-1_CR344434-89345-1.5.0_11-20070925-1628-windows-ia32, compiled mode)
Starting WLS with line:
C:\bea\JROCKI~1\bin\java -jrockit -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,address=8453,server=y,suspend=n
+.compiler=NONE -Xms256m -Xmx512m -agentpath:"C:\Program Files\NetBeans 6.1\profiler3\lib\deployed\jdk15\windows\+
+rinterface.dll=\"C:\Program Files\NetBeans 6.1\profiler3\lib\"",5140 -Xverify:none -ea -da:com.bea... -da:javel+
da:weblogic... -ea:com.bea.wli... -ea:com.bea.broker... -ea:com.bea.sbconsole... -Dplatform.home=C:\bea\WLSERV~1.
+.home=C:\bea\WLSERV~1.0\server -Dweblogic.home=C:\bea\WLSERV~1.0\server -Dwli.home=C:\bea\WLSERV~1.0\integration+
ogic.management.discover=true -Dwlw.iterativeDev= -Dwlw.testConsole= -Dwlw.logErrorsToConsole= -Dweblogic.ext.di
ea\patch_wls1001\profiles\default\sysext_manifest_classpath -Dweblogic.Name=AdminServer -Djava.security.policy=C:
SERV~1.0\server\lib\weblogic.policy   weblogic.Server
Profiler Agent: Initializing...
Profiler Agent: Options: >"C:\Program Files\NetBeans 6.1\profiler3\lib",5140<
Profiler Agent: Initialized succesfully
Listening for transport dt_socket at address: 8453
Profiler Agent: Waiting for connection on port 5140 (Protocol version: 8)
Profiler Agent: Established local connection with the tool
Profiler Agent: Unable to get address of JVM_DumpHeap function
+===== BEGIN DUMP =============================================================+
JRockit dump produced after 0 days, 00:00:20 on Thu Aug 28 18:46:28 2008
Additional information is available in:
C:\bea\user_projects\domains\nms_dev\jrockit.3728.dump
C:\bea\user_projects\domains\nms_dev\jrockit.3728.mdmp
If you see this dump, please open a support case with BEA and
supply as much information as you can on your system setup and
the program you were running. You can also search for solutions
to your problem at http://forums.bea.com in
the forum jrockit.developer.interest.general.
Error Message: Unhandled native exception [85]
Exception Rec: EXCEPTION_STACK_OVERFLOW (c00000fd) at 0x004FE3DF
Minidump     : Wrote mdmp. Size is 297MB
SafeDllMode : -1
.

It looks like NetBeans does not support JRockit: http://profiler.netbeans.org/docs/help/5.5/vms.html
Regards,
/Staffan

How to get applets running with Java Plug-in on Win but also on Mac OS X???

I've converted to the use of Java Plug-in for my applets, but I need to have those same applets executable from browsers on Mac OS X platform. Surely this has been done, but I don't see how. The browsers I've tried on Mac OS X (Netscape, IE) don't seem to recognize the <OBJECT> tag used for the java plug-in. I've seen no news about the Java plug-in being ported to Macs. How can one get the same applet to run with the Java plug-in on Windows browsers, and also to run with at least one of the common browsers on Mac OS X? Any help would be SO much appreciated!

Those ten dukes look good to me. But the passing of fifteen months has me thinking you've probably moved on. In any case, here's my effort.
I've been through a trial trying to get my applet, developed with 1.4.1_03, to run on my Mac OS X v.10.2.6 in multiple browsers. I'm posting my results here. Comments and feedback are welcome.
JVM support for 1.4.1 is limited to the Safari browser. All other browsers running in Mac OS X that I've tried ( Camino, Opera, Internet Explorer, Mozilla ) are using the 1.3.1 plugin. According to a bug report by Mozilla on this topic ( see Bugzilla Bug # 197813 http://bugzilla.mozilla.org/show_bug.cgi?id=197813 )
with the release of Apple's version of Sun's Java 1.4.1 the applet programming model has changed, and only Safari has adapted with this change. Other browsers, according to the report, could not because of a lack of documentation. The use of the MRJCarbon plugin offered by Mozilla (here - http://www.mozilla.org/oji/MRJPluginCarbon.html) only allows Mozilla to use the J 1.3.1. And I have not found any information on the Microsoft site about how to get IE 5.2 to recognize the newer version of Java.
Regarding the use of the OBJECT tag in Safari, it is a matter of debate. A current post on this topic exists in the Applet Development forum:
http://forum.java.sun.com/thread.jsp?forum=421&thread=441002
In my experience, I have not been able to determine that Safari v1.0 recognizes the OBJECT tag. My experience is that the APPLET tag is required to run applets in Safari. The Bugzilla report echoes the problem with the BadMagicNumber error that can arise in Safari. Nonetheless, I enjoy Safari and I enjoy Mac OS X.

Button ui stub with netbeans 6.7.1

Hi,
I want to bind an action to a graphic node defined in a UI stub generated with netbeans
I use following code, however, that does not work, group is not recognized :
class Controller {
    var ui = MyPartViewUI {
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}

Ah, perhaps you mean the Button class shown in [this tutorial|http://newfoo.net/2009/01/14/creating-a-javafx-design-without-programming.html] (thanks for the link, I didn't know this blog, looks instructive).
I think the article is interesting, but they poorly chose the name of the class, since we have an official Button in JavaFX.
Uh, not, the article dates back to January, ie. JavaFX 1.0, we hadn't Button yet at this time... But you should rename it to avoid clashes...

Why can't I run my Java program with just the JRE, the JDK is required?

I've recently written 3 programs in Java using the Netbeans IDE with JDK 1.6 as the default Java platform. The compile-time libraries include the Swing Application Framework. I use BuildDesk from ProductiveMe to package the each program into a Windows installer.
When I install the programs on a new computer without a JRE or JDK being present, and attempt to run them I get an error (as expected) stating that there is no JVM. The messages says that I need to install JDK 1.3 or higher. I downloaded the latest JRE onto the new computer and attempted to run the programs and I get the same error message. My question is, why can't I run these programs with just the JRE installed? Why do I need the JDK? When I install the JDK, the programs run fine. The typical user may not have the JDK on their system, but they likely have the JRE if they've run Java programs before.
Is the answer as simple as there must be library functions being used by the programs that belong to the JDK, but not the JRE? I'd rather a user not have to install the JDK verses the JRE because they may also have to update some Windows environment variables.
Thank you for any help on this issue.

915088 wrote:
Thanks for your replies. I further investigated BuildDesk and found an option which allows a JVM check but that check needs the JDK. I stopped the JVM check and rebuilt using BuildDesk and it now only requires the JRE to run the programs. The reason why I use BuildDesk is to package more than just the jar file for the user. BuildDesk allows me to create a installation folder structure as well as include any other files in the build. I could just as well zipped all this together for the user but decided against that method.I don't think anyone will question your usage of an installer tool; that is entirely up to you. But what is questionable is that you have problems with that installer tool and then go look for help in a Java programming forum. The next time, go look for help at the source. If there is no way to acquire help (support, a forum, a mailinglist, anything) then that is a very good reason to not use the product in question.

OSX 10.4.10, Net beans and Sams Programing with JAVA

I am brand new to Java so I downloaded Net Beans on my MAC. I bought a copy of Teach Your Self Programing with Java in 24 hrs.
So far I got the first three programs to compile on Net Beans but got stuck when they started to talk about arguments. The following will not compile. Starting at line 2
1) System.out.println("The " + arguments [0]
2) + " " + arguments[1] + " fox "
3) + "jumped over the "
4) + arguments[2] + " dog. ")
I get the little red x on each line.
Is the book wrong or am I missing something?
All the tutorials talk about Javac. I can't seem to find it or get to it on my computer. How do I know if I even have it?
And is there such a thing as a "command line" on a MAC?

Hi, you should put any code you post in between code brackets like this:
code here I dont use a mac or netbeans but javac is the java compiler, you would not have been able to compile the first two. The .exe (or whatever mac executable is) is usually located in the lib folder in the java directory. It comes when you download JDK. As for the code, it would help me if you posted the first couple lines of the error message. It looks fine to me, but I would need to see your whole class in order to help you further
and yes there is a command line on a mac...i think its called terminal and usually looks like a little computer
Edited by: jaredL on Sep 20, 2007 7:45 PM
Edited by: jaredL on Sep 20, 2007 7:47 PM

Cannot create a project with netbeans 4.1

hi. i am using jdk1.5 update 3 with netbeans 4.1. my operating system is ubuntu linux 5.04. when i want to create a new project with netbeans i get this error:
javax.xml.transform.TransformerConfigurationException: Could not compile stylesheet
i open netbeans, click button "new project", select "General > Java Application", click "next" button.
project name: JavaApplication1
project location: /home/bsevindi
project folder: /home/bsevindi/JavaApplication1
when i click "finish" button, i get the error above. what should i do? BTW, i have compiled
a sample project and it works fine. the problem is only about creating a new project.

I suggest you post the question to a netbean users forum.
This forum is better for question regarding programming rather than how to use an IDE.

Applet programming with Netbeans?

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