Java Applets and Java Sound

I have an applet that displays buttons on panel and after doing all this it has to play a sound file. I have made sure that only after the methods that display the buttons (like creating panel, adding buttons to that panel etc.) i am calling the method that plays the sound file. But what happens is that immediately it starts playing the sound file and after playing the sound file it displays the buttons etc. on the applet. Can you please help me with this problem??

as has already been said you should:
1) load the clips you want to play in the init() method (ie audioClip = Applet.newAudioClip(URL) )
2) play them in the applet start() method
3) stop the clip in the applet stop() method
You shouldn't play the clip in the init() method because it's the method called by the applet to initialize itself.
ie to paint itself...

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Java Applets and .java.policy

Hi.
We are developing an applet that need to access to the file systems and anothers properties, like user.home. To do this and don't modify the java.policy of the jre, we create a .java.policy file into user home. The content is:
grant {
permission java.util.PropertyPermission "user.name", "read";
permission java.util.PropertyPermission "user.home", "read, write";
permission java.util.PropertyPermission "java.library.path", "read, write";
permission java.lang.RuntimePermission "accessClassInPackage.org.mozilla.jss.*";
permission java.io.FilePermission "${user.home}/", "read";
permission java.io.FilePermission "${user.home}/-", "read, write";
With this configuration it works fine in Linux with Iceweasel, but in windows it's not work (firefox nor internet explorer)!.
The error is:
[SignApplet]: M�dulo iniciado.
[SignApplet]: Cliente de firma iniciado.
[ESignatureFormatFactory]: Buscando formato 'CMS'... encontrado!
[SignManager]: Firmando digitalmente...
java.lang.NullPointerException
     at java.util.Properties$LineReader.readLine(Unknown Source)
     at java.util.Properties.load(Unknown Source)
     at com.telventi.afirma.cliente.utilidades.MimeTypeHelper.<init>(MimeTypeHelper.java:23)
     at com.telventi.afirma.cliente.utilidades.MimeTypeHelper.getInstance(MimeTypeHelper.java:32)
     at com.telventi.afirma.cliente.actions.ACommonAction.<clinit>(ACommonAction.java:59)
     at com.telventi.afirma.cliente.signatureformat.signaturemanager.ASignManager.warn(ASignManager.java:405)
     at com.telventi.afirma.cliente.signatureformat.signaturemanager.SignManagerMSIEWin32.signDigitally(SignManagerMSIEWin32.java:63)
     at com.telventi.afirma.cliente.signatureformat.CMSSignatureFormat.createSignedInfo(CMSSignatureFormat.java:1562)
     at com.telventi.afirma.cliente.signatureformat.CMSSignatureFormat.signExplicitHash(CMSSignatureFormat.java:265)
     at com.telventi.afirma.cliente.signatureformat.signaturemanager.ASignManager.signHashElectronically(ASignManager.java:139)
     at com.tsol.afirma5.util.impl.AppletServiceImpl.generarFirma(AppletServiceImpl.java:60)
     at com.tsol.validacionCertificado.applet.TSolApplet.obtenerFirmaGenerada(TSolApplet.java:105)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at sun.plugin.javascript.invoke.JSInvoke.invoke(Unknown Source)
     at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at sun.plugin.javascript.JSClassLoader.invoke(Unknown Source)
     at sun.plugin.com.MethodDispatcher.invoke(Unknown Source)
     at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)
     at sun.plugin.com.DispatchImpl$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.plugin.com.DispatchImpl.invoke(Unknown Source)
java.lang.ExceptionInInitializerError
     at com.telventi.afirma.cliente.signatureformat.signaturemanager.ASignManager.warn(ASignManager.java:405)
     at com.telventi.afirma.cliente.signatureformat.signaturemanager.SignManagerMSIEWin32.signDigitally(SignManagerMSIEWin32.java:63)
     at com.telventi.afirma.cliente.signatureformat.CMSSignatureFormat.createSignedInfo(CMSSignatureFormat.java:1562)
     at com.telventi.afirma.cliente.signatureformat.CMSSignatureFormat.signExplicitHash(CMSSignatureFormat.java:265)
     at com.telventi.afirma.cliente.signatureformat.signaturemanager.ASignManager.signHashElectronically(ASignManager.java:139)
     at com.tsol.afirma5.util.impl.AppletServiceImpl.generarFirma(AppletServiceImpl.java:60)
     at com.tsol.validacionCertificado.applet.TSolApplet.obtenerFirmaGenerada(TSolApplet.java:105)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at sun.plugin.javascript.invoke.JSInvoke.invoke(Unknown Source)
     at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at sun.plugin.javascript.JSClassLoader.invoke(Unknown Source)
     at sun.plugin.com.MethodDispatcher.invoke(Unknown Source)
     at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)
     at sun.plugin.com.DispatchImpl$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.plugin.com.DispatchImpl.invoke(Unknown Source)
Caused by: com.telventi.afirma.cliente.exceptions.ClienteFirmaRuntimeException: Error al mapear el archivo de tipos.
     at com.telventi.afirma.cliente.utilidades.MimeTypeHelper.<init>(MimeTypeHelper.java:26)
     at com.telventi.afirma.cliente.utilidades.MimeTypeHelper.getInstance(MimeTypeHelper.java:32)
     at com.telventi.afirma.cliente.actions.ACommonAction.<clinit>(ACommonAction.java:59)
     ... 21 more
Caused by: java.lang.NullPointerException
     at java.util.Properties$LineReader.readLine(Unknown Source)
     at java.util.Properties.load(Unknown Source)
     at com.telventi.afirma.cliente.utilidades.MimeTypeHelper.<init>(MimeTypeHelper.java:23)
     ... 23 more
java.lang.Exception: java.lang.ExceptionInInitializerError
     at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)
     at sun.plugin.com.DispatchImpl$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.plugin.com.DispatchImpl.invoke(Unknown Source)
[SignApplet]: Invocando isInitialized.
Code where it fail is:
TYPES.load((com.telventi.afirma.cliente.utilidades.MimeTypeHelper.class).getResourceAsStream("mimetypes.properties"));
TYPES is Properties object.
When we modify the .java.policy file with permission java.security.AllPermission it work fine too, and this make to us think that this is a permission problem!.
Somebody has an idea???
Sorry for my english!

Having to modify the policy file defeats the whole point of using applets in the first place. If you have to install anything (such as a new policy file) on the client machine, you may as well install a GUI program.
Either get yourself a digital certificate and sign the applet, or use an independent program instead.

What're the differences between JSP, Java Script, and Java Applet?

I am confused by the concepts: JSP (Java Server Page), Java Script, and Java Applet? What are their main differences?

I don't know about differences, but one of their main similarities is that each of them has a page in Wikipedia.
JSP
JavaScript
[Java applet|http://en.wikipedia.org/wiki/Java_applet]
There. That should give you enough information.

Difference between Java applet and JavaFX

Hello, all!
I am studying javaFX in general. As far as I understand there is no main difference between java applet and javafx, except javafx has different syntax and library simple to use. Is it right?

Basically, yes. But as you point out, it is supposed to be faster to develop in JavaFX...
For example, Processing allows to export to applet, and is strong on doing graphics, but to see if user has clicked on a circle, you have to check the mouse coordinates against the circle coordinates, or create your own Circle class: it is at a much lower level.
Likewise, you can use gaming frameworks like Slick2D or PulpCore, but they might be lacking on GUI (but perhaps faster). Or use Apache's Pivot, strong on GUI, but perhaps lacking a bit on graphics and animation.
It depends on your needs, if you prefer to stick to Java, etc.

Whats is difference between Java JRE and Java SDK

Hi,
what is the difference between Java JRE and Java SDK...
i think both of them have the same set of files to be installed...
I am not able to understand where they differ

The JRE (Java runtime Environment) contains just the stuff necessary to run Java and the SDK (System Development Kit) contains the extra stuff necessary (and also helpful) to develop in Java.

Java SE and Java EE

I am a IT graduate and I still need some clarification on the relationship between Java SE and Java EE API. Does EE include SE?
For application development, I know I can use only SE without the EE, but can I use EE alone without SE?
Any good articles addressing my questions?
Thank you very much
R

Java EE in fact extends java SE, its primarily aim is to simplify developing multitier enterprise applications (Java SE provides all the necessary basic libraries etc.)
Because Java EE is an extension of Java SE, you cant use EE without SE - without SE there is no EE.

Help Needed in Creating Java Class and Java Stored Procedures

Hi,
Can anyone tell how can i create Java Class, Java Source and Java Resource in Oracle Database.
I have seen the Documents. But i couldn't able to understand it correctly.
I will be helpful when i get some Examples for creating a Java Class, Java Source and Stored Procedures with Java with details.
Is that possible to Create a Java class in the oracle Database itself ?.
Where are the files located for the existing Java Class ?..
Help Needed Please.
Thanks,
Murali.v

Hi Murali,
Heres a thread which discussed uploading java source file instead of runnable code on to the database, which might be helpful :
Configure deployment to a database to upload the java file instead of class
The files for the java class you created in JDev project is located in the myworks folder in jdev, eg, <jdev_home>\jdev\mywork\Application1\Project1\src\project1
Hope this helps,
Sunil..

About Java mapping and java proxy

Hi
Iam new to Xi and basically iam an ABAPER.When iam dooing mappinps or proxies i cant able to understand the java pari cant (javamapping and java proxies) .I need some notes on java mapping and java proxy which is easy to do.And why do we use this java mapping or java proxy particularly when we r having abap mappipng and abap proxy.
thanks in advance

Hi,
refer
Java Mapping
SAP Network Blog: Java Mapping (Part I)
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-i
Java Mapping in XI
https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=java+mapping&adv=false&sortby=cm_rnd_rankvalue#
Runtime Environment (Java Mappings) (SAP Library - Partner Connectivity Kit)
http://help.sap.com/saphelp_nw04/helpdata/en/bd/c91241c738f423e10000000a155106/frameset.htm
Java Mapping (SAP Library - Partner Connectivity Kit)
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/frameset.htm
SAP Network Blog: Testing and Debugging Java Mapping
/people/stefan.grube/blog/2006/10/23/testing-and-debugging-java-mapping-in-developer-studio
SAP Network Blog: Implementing a Java Mapping in SAP PI
/people/carlosivan.prietorubio/blog/2007/12/21/implementing-a-java-mapping-in-sap-pi
"JAVA MAPPING", an alternate way of reading a CSV file
/people/rahul.nawale2/blog/2006/07/18/java-mapping-an-alternate-way-of-reading-a-csv-file
SAP Network Blog: XI Java Mapping Helper (DOM)
/people/alessandro.guarneri/blog/2007/03/25/xi-java-mapping-helper-dom
Java Proxy
Java Proxy Objects (SAP Library - SAP Exchange Infrastructure)
http://help.sap.com/saphelp_nw04/helpdata/en/c5/7d5e3c754e476ee10000000a11405a/frameset.htm
Accessing Active Directory through Java Proxy on SAP Exchange Infrastructure 3.0
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10716e9f-23d7-2a10-8c8c-d2665615f8fc
Thanks
Swarup

JAVA beans and JAVA related services require Oracle client to be installed?

Can you please advice whether an application server that make use of JAVA beans and JAVA related services require Oracle client to be installed? For an example if the solution build based on Java and JBOSS to be used as application server, do we still require oracle client to be installed and configure the tnsnames in order to communicate to database server?

SHANOJ wrote:
Can you please advice whether an application server that make use of JAVA beans and JAVA related services require Oracle client to be installed? For an example if the solution build based on Java and JBOSS to be used as application server, do we still require oracle client to be installed and configure the tnsnames in order to communicate to database server?Oracle client is not required when JDBC is used to connect to the remote DB

Java Mail and Java Activator

I have problems to deploy the API's Java Mail and Java Activator
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When deploying the classes in the API's that has names beginning
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deploy the classes starting with "javax..." I get error:
"ORA-01031 Unsufficient privileges."
The error occurs during the creation of the classes.
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null

Hi Mark
I wish to send email messages from stored procedure. I looked at
the "Java Stored Procedures Developer's Guide" but I am still
confused. I wrote a Java program (importing "javax.mail" package)
and then I called "loadjava": it did not work
I read this reply, but I do not understand exactly what you mean.
I am quite new to Oracle, and there are "tons" of things which I
do not understand.
Would you please explain me what I have to do to send email from
a stored procedure?
Thanks in advance, Carlo
email: [email protected]
PS: Sorry for my bad English
mark tomlinson (guest) wrote:
: In addition to loading JavaMail as sys in the database. You
also
: need to load the "invocation framework" that JavaMail depends
on
: (there is a link on the Javasoft JavaMail site to download the
: code).
: When you load java code as SYS you can pass the -s and -g
public
: options to loadjava to make sure that public synonyms are
created
: and that the loaded classes are runnable by all schemas:
null

Java io and Java nio, which is faster to binary io?

Anybody can advise me about java io and java nio ?
I want to write the faster code to read and write binary files.
I'm going to read/write
- individual elements (int, double, etc)
- arraylists
- objects
Also I'm going (or I'd want) to use seek functions.
Thanks

Anybody can advise me about java io and java nio ?
I want to write the faster code to read and write binary files.Which is "faster" depends on exactly how you're using them. For example, a MappedByteBuffer is usually faster for random access than a RandomAccessFile, unless your files are so large (and your accesses so random) than you're constantly loading from disk. And it's not at all faster for linear uni-directional access than a simple FileInputStream.
So, rather than expecting some random stranger telling you that one is faster than the other without knowing your project, perhaps you should tell us exactly how you plan to use IO, and why you think that one approach may be faster than the other.

Java SE5 and Java EE5 difference

What is the difference between Java SE5 and Java EE5? Also difference btwn SDK and JDK? I am confused about these basic concepts.
Thanks
Geet

Java Platform, Enterprise Edition is a related specification which includes all of the classes in Java SE, plus a number which are more useful to programs which run on servers as opposed to workstations.
Java EE includes several API specifications, such as JDBC, RMI, e-mail, JMS, web services, XML, etc, and defines how to coordinate them. Java EE also features some specifications unique to Java EE for components. These include Enterprise JavaBeans, servlets, portlets (following the Java Portlet specification), JavaServer Pages and several web service technologies.

Java platform and Java Deployment should be updated but there is no other version, always the warning to update but thats not possible

Java Platform 7u9 and Java Deployment Kit plug-ins are yellow and asked to be updated.
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Even if I try to instal this latest version again I've get the message that I already have the latest version.
The same problem was with Flashplayer where I installed the latest version but three days Firefox asked to update the plugin.
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What should or can I do? I always be careful and patch my pc if necesserry.
All my friends who are working with Firefox have the same problem.
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Hi
There is still an issue for me. When i check to see if add-ons are up to date it identifies "Java(TM) Platform SE 7 U9" as out-of-date and gives me an orange "Update" action. When i hit this it takes me to the Java website giving me "Recommended Version 7 Update 9". This is the one i've already got so i cannot get rid of the orange Update action buttons.
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Differnet Charting behaviour between Java 7 and Java 8

Hi I've developed an application with charts in Java FX and Java 7. Everything works fine, but now I've tested it with Java 8. There I can see, that something must have changed in the way a chart wil be painted.
The following code will describe the problem. Execute it with Java 7 and Java 8 and you will see what I mean.
package linechartsample;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.chart.AreaChart;
import javafx.scene.chart.LineChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;
public class LineChartSample extends Application {
@Override
public void start(Stage stage) {
stage.setTitle("Line Chart Sample");
final NumberAxis xAxis = new NumberAxis();
final NumberAxis yAxis = new NumberAxis();
xAxis.setLabel("Month");
final LineChart<Number, Number> lineChart = new LineChart<Number, Number>(
xAxis, yAxis);
lineChart.setTitle("Stock Monitoring");
lineChart.setCreateSymbols(false);
XYChart.Series series1 = new XYChart.Series();
series1.setName("Portfolio 1");
series1.getData().add(new AreaChart.Data(1, 10));
series1.getData().add(new AreaChart.Data(2, 20));
series1.getData().add(new AreaChart.Data(3, 10));
series1.getData().add(new AreaChart.Data(2, 5));
series1.getData().add(new AreaChart.Data(1, 10));
Scene scene = new Scene(lineChart, 800, 600);
lineChart.getData().addAll(series1);
StringBuilder builder = new StringBuilder();
// builder.append("-fx-stroke: ");
// builder.append("#");
// builder.append(Integer.toHexString(115));
// builder.append(Integer.toHexString(115));
// builder.append(Integer.toHexString(115));
// builder.append(Integer.toHexString(100));
builder.append("-fx-fill: ");
builder.append("#");
builder.append(Integer.toHexString(215));
builder.append(Integer.toHexString(115));
builder.append(Integer.toHexString(115));
builder.append(Integer.toHexString(100));
series1.getNode().setStyle(builder.toString());
stage.setScene(scene);
stage.show();
public static void main(String[] args) {
launch(args);
What happens here in Java 8???
Additionally I've tried to draw a simple AreaChart with a series of negative values. In Java 7 the area between the line and the X-Axis will be filled. In java 8 the area between the line and the bottom of the chart will be filled. Are there any new properties which have to set to draw it in the correct way? I've checked it with the stackedAreaChart. Here everything is fin in Java7 and Java8.
Can somebody explain me that change in the behaviour of the charts in JavaFX 8?? Or is this a Bug??
Kind regards

Your code is really weird.
Applying a fill to the line path in a line chart is a strange thing to do. Usually a line chart is for drawing lines not filled areas. For filled areas, JavaFX has an AreaChart.
Setting multiple y values for a given x value in a series is also a very strange thing to do. Usually for a LineChart plot, the x values in the series are unique.
I haven't tried your code on Java 7 as I don't have Java 7 installed and your code doesn't really seem like a valid test case to me anyway. That your code got you a result you wanted in Java 7 would be more a fluke than anything else, I would guess.
For your area chart question, please ask that as a separate question with reproducible source code and test case.
If you really think there are bugs or regressions in JavaFX, then report them in the bug tracker after running your tests on the latest development JDK at: https://jdk8.java.net/download.html

Drop java class and java source

Hi,
When I query user_objects I get some java class and java source objects
select * from user_objects where object_type like 'JAVA %';
How do I drop these java source and java class objects from the database
I tried using the following command
drop java class /4a524d89_AutoTransliteratorPk
drop java source AutoTransliteratorPkg
But I get error ORA-29501: invalid or missing Java source, class, or resource name
Please someone help me in dropping these objects
thanks
saaz

was the java source all caps or was it exactly AutoTransliteratorPkg. If its exactly AutoTransliteratorPkg then try this
drop java source "AutoTransliteratorPkg"

Java Applets and Java Sound

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