Adding an image in a java applet

Hey everyone... I am using Jbuilder and trying to add an image or background image in my applet. The image is in the folder the java file runs out of. I would really appreciate it if anyone could help me..

I use this to add an image that I have saved in the applet folder
Image image;
public void init() {
image = getImage(getDocumentBase(), "auburn.jpg");
and I get this error when I try to run it in Jbuilder:
java.lang.NullPointerException
     at java.applet.Applet.getDocumentBase(Applet.java:125)
     at JavaProject.<init>(JavaProject.java:103)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
     at java.lang.Class.newInstance0(Class.java:308)
     at java.lang.Class.newInstance(Class.java:261)
     at sun.applet.AppletPanel.createApplet(AppletPanel.java:617)
     at sun.applet.AppletPanel.runLoader(AppletPanel.java:546)
     at sun.applet.AppletPanel.run(AppletPanel.java:298)
     at java.lang.Thread.run(Thread.java:534)
What could be the problem?

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Zoom in and zoom out a image in a java applet

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Crosspost (and other thread has started some answers):
http://forum.java.sun.com/thread.jspa?threadID=624295

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Thank you Nitin for your quick reply!
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Having problem with importing images to a java applet in web broswer

I'm creating a mini 2d game just for fun and I am running it as a applet with the JApplet class.
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<html>
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I've looked at a few other tutorials that outline the same sequence of steps, and tried them over and over, and then changing one step at a time to make sure that it was not a single step that caused the problem.
The thing that is really bugging me is that it works fine if I use the different approach of using the place command instead.
Anyway, thanks for all of your time. It's going to be a lot simpler to just stick with 'place' command and I will likely do that, but I tend take things like this as a challenge. I like to know WHY it won't work for me. Sometimes it seems that there is just no logical explanation!
Stuart

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import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.*;
import java.applet.*;
import javax.swing.*;
import javax.imageio.*;
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import java.net.*;
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super.paintComponent(g); //paint background
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g.drawImage(image, 0, 0, this); //85x62 image
//End of DisplayImage.java

The security model for applets does not allow them to read from a URL unless it is on the same host the applet was loaded from. If you must do this then you must sign your applet for it to work.

Adding image to JDialog in Applet

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Exception in thread "main" java.lang.NullPointerException
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Okay I guess I spoke to soon.. :O Now I have no Runtime error but my JDialog is completly empty.. And my BlackTheme stopped working.. Not It's a blue theme instead..
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import java.io.*;
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import javax.swing.*;
import javax.imageio.*;
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JDK 1.4.2 java applet image printing on mac safari

Hi there,
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bgHeight = bgIcon.getIconHeight();
fgWidth = fgIcon.getIconWidth();
fgHeight = fgIcon.getIconHeight();
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timer = new Timer(100, this); //delay = 100 ms
timer.setInitialDelay(0);
timer.setCoalesce(true);
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startAnimation();
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layeredPane.add(fgLabel, new Integer(1)); //high layer
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stopAnimation();
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if (frozen) {
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timer.start();
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timer.stop();
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frameNumber++;
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fgLabel.setLocation(
((frameNumber*5)
% (fgWidth + bgWidth))
- fgWidth,
(bgHeight - fgHeight)/2);
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MovingLabels.bgFile);
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MovingLabels.fgFile);
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movingLabels.startAnimation();
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Upload Images java applet

Hello,
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One more thing (may not be related): When removing the Name=... attribute from the APPLET tag (and only keeping class="the.class" and archive="the.jar") the applet won't load unless the HTML page is open directly from Windows Explorer (it won't load when load as http://localhost/testpage.htm).
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However, even when the applet's jar is signed, the same exception is thrown ...you must have done something wrong, try doprivileged if your code is called by untrusted code
like javascript.
You might try non depreciated html and have a go at the htmlconverter in the jdk bin directory to
convert your html pages.
Signing applets:
http://forum.java.sun.com/thread.jsp?forum=63&thread=524815
second post and last post for the java class file using doprivileged
Uploading using multipart/form-data:
http://forum.java.sun.com/thread.jspa?threadID=530445&tstart=270
Still problems?
A Full trace might help us out:
http://forum.java.sun.com/thread.jspa?threadID=656028

Adding a java applet in Apex page

Hello, I am trying to add a java applet to my page. This is what I do. I create an html region with source ;
<applet width=300 height=300 codebase="#WORKSPACE_IMAGES#DrawingLines.class"></applet>
and I upload DrawingLines.class file as a static file.
When I run the page I see the java cup sign (with running circle around) but not the applet. Does this have to do anything with the browser security? My knowledge of Java is very limited, but I thought this should work.
George

I just feel like I have to answer this and I hope this is the last post in this thread.
"I find it amusing that you have come to this forum demanding free technical support, and have posted over 200 times, but you yourself have never once answered somebody's question and gotten a helpful or correct reward"
First of all, I have helped people on a few occasions , I don't know what kind of "helpful or correct reward" you are referring to but yes I have given useful answers and gotten "thank you" from a few members.
Second, most of my posts are from year or more ago when I was learning Apex, I have very few posts in the last 6-12 months.
Third, if nobody asks the questions then there will be no answers => there will be no forum. The very existence of this forum is based on people asking question so why should I be ashamed to "demand free technical hellp", isn't this what most people are doing here?
The rest of your post is just words pretty much not saying anything (you might wanna try a carier in the politics) so I am not going to address it.
Have a wonderful day.

Php adding java applet

Hi, I new to java and php and I want to use php and using java applet. How to add java applet into php. Please Help me.

How to add java applet into php. Please Help me. If it is working in html why don't you puts those tags in your php page.
something like this. But i don't know your PHP server support java..
<?php
Your php here
?>
<applet code="MyApplet.class" width=100 height=140></applet>
<?php
more php here
?>Edited by: sunish_jose on Jan 29, 2009 12:41 PM

Proxy Login Request on Java applets

• 10.4.5 Client
• Windows 2.3k ISA 2005 Proxy Server
• Users' fileserving to Win2.3k - ADmitMac for AD integration
The client is a test machine on which I build campus master NetInstall images. In my testing procedures I've come across a bizarre problem with Java in the browsers (IE, Safari, & FireFox).
We use ISA proxy server with web filtering, and users must authenticate to the proxy. On a new user's first use of any browser, the proxy username & password are requested, and the Add to Keychain checkbox is available. If the user checks the box, no further proxy login requests are made; the user's Keychain is updated with the proxy information.
On pages with Java applets, however, each and every applet will ask for a proxy login, but the login window does not offer a Add to Keychain checkbox! If a page has 15 applets on it, the user will be asked 15 times to authenticate against the proxy.
Naturally, this is a BIG problem, especially when several of the sites our teachers use in classes and labs contain many Java applets.
On the web, there is almost nothing concerning setting up Java with proxy servers, as all Apple Java from v. 1.4.2 onwards picks up proxy information from the system's network settings.
On the Apple Developer site, Tech Note QA1263 demonstrates a way of setting HTTPS proxy settings by entering text strings in the 1.3.1 and 1.4.1 Plugin Settings apps Java Runtime Parameters. The same capability exists in the J2SE 5.0 Java Preferences app, too. Unfortunately, the Java applets do not use HTTPS, so far as I can tell, so this remedy is useless.
Any clues I can pursue? Any help or fixes?
Thanks in advance!
Derek I Smith
Systems & Network Admin
Riverdale Country School
www.riverdale.edu
eMacs,g4s,QSs,B/Ws,iMacs,G5,G5 XServe, etc Mac OS X (10.4.5)

After some more research with the J2SE 5.0 Java Preferences app, I turned on the Java console, booted Safari and went to my favorite Java applet - babynamewizard. This is the output of the console log. From what I can glean, the plug-in sees the proxy server settings as it should, and reports them.
In addition, the J2SE 5.0 Java Preferences app allows you to turn off all security settings. No change in behavior.
The Log:
Java Plug-in 1.5.0
Using JRE version 1.5.0_05 Java HotSpot(TM) Client VM
User home directory = /Users/admin
network: Loading user-defined proxy configuration ...
network: Done.
network: Loading proxy configuration from Netscape Navigator ...
network: Done.
network: Loading manual proxy configuration ...
network: Done.
network: Proxy Configuration: Manual Configuration
Proxy: http=pcproxy.riverdale.edu:8080,https=pcproxy.riverdale.edu:8080,ftp=pcproxy.ri verdale.edu:8080,gopher=pcproxy.riverdale.edu:8080,socks=pcproxy.riverdale.edu:8 080
Proxy Overrides:
basic: Cache is enabled
basic: Location: /Users/admin/Library/Caches/Java/cache/javapi/v1.0
basic: Maximum size: unlimited
basic: Compression level: 0
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
basic: Referencing classloader: sun.plugin.ClassLoaderInfo@fb6354, refcount=1
basic: Added progress listener: sun.plugin.util.GrayBoxPainter@dc0e7a
basic: Loading applet ...
basic: Initializing applet ...
basic: Starting applet ...
network: Connecting http://babynamewizard.com/namevoyager/nametide2.jar with proxy=HTTP @ pcproxy.riverdale.edu/172.16.1.52:8080
network: Connecting http://babynamewizard.com/namevoyager/nametide2.jar with cookie "s_cc=true; s_sq=%5B%5BB%5D%5D"
network: Firewall authentication: site=pcproxy.riverdale.edu/172.16.1.52:8080, protocol=http, prompt=ENKI.riverdale.edu, scheme=basic
basic: User selected: 0
~ ~ ~
The proxy login window appears at this point and I authenticate to the proxy
The log continues...
~ ~ ~
network: Connecting http://babynamewizard.com/namevoyager/nametide2.jar with proxy=HTTP @ pcproxy.riverdale.edu/172.16.1.52:8080
basic: Loading http://babynamewizard.com/namevoyager/nametide2.jar from cache
basic: No certificate info, this is unsigned JAR file.
network: Connecting http://babynamewizard.com/namevoyager/namedb.zip with proxy=HTTP @ pcproxy.riverdale.edu/172.16.1.52:8080
network: Connecting http://babynamewizard.com/namevoyager/namedb.zip with cookie "s_cc=true; s_sq=%5B%5BB%5D%5D"
Columns found: 28
Num years: 13
YEAR NAME: 1880s
YEAR NAME: 1890s
YEAR NAME: 1900s
YEAR NAME: 1910s
YEAR NAME: 1920s
YEAR NAME: 1930s
YEAR NAME: 1940s
YEAR NAME: 1950s
YEAR NAME: 1960s
YEAR NAME: 1970s
YEAR NAME: 1980s
YEAR NAME: 1990s
YEAR NAME: 2004
Num names: 5251
0 --> 923475.0
1 --> 915444.0
2 --> 905002.0
3 --> 910731.0
4 --> 915165.0
5 --> 924335.0
6 --> 938721.0
7 --> 940141.0
8 --> 923814.0
9 --> 869609.0
10 --> 848116.0
11 --> 800666.0
12 --> 759055.0
Rank misses: 21
0.15
0.4475
0.395
0.3425
0.29000002
0.23750001
0.185
0.48250002
0.43
0.3775
0.325
0.2725
0.22
0.1675
0.465
0.4125
0.36
0.3075
0.255
0.2025
~ ~ ~
The applet runs

PROXY SETTING ERROR - LOADING JAVA APPLET FAILED

I have the most current version of Java (confirmed) installed l.5.0. When I do the Java Virtual Test, I fail at the proxy setting with the red X. I have tried everything recommended at "Configuration Check List" and I have also chatted with microsoft techs who recommended that I register certain .dll's among other things. Nothing has worked. Is the Java Control Panel the same thing as the Java Plug-in Control Panel? I only have the JCP. Could that be the problem? I also get a message in other areas that scripting is not enabled. Is this all related?

Thought I should add this to further explain what is happening ... Hope you can help!
Java Plug-in 1.5.0_06
Using JRE version 1.5.0_06 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\Compaq_Owner
network: Loading user-defined proxy configuration ...
network: Done.
network: Loading proxy configuration from Internet Explorer ...
network: Done.
network: Loading direct proxy configuration ...
network: Done.
network: Proxy Configuration: No proxy
basic: Cache is enabled
basic: Location: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\cache\javapi\v1.0
basic: Maximum size: unlimited
basic: Compression level: 0
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
basic: Registered modality listener
liveconnect: Invoking JS method: document
liveconnect: Invoking JS method: URL
basic: Referencing classloader: sun.plugin.ClassLoaderInfo@f73c1, refcount=1
basic: Added progress listener: sun.plugin.util.GrayBoxPainter@19a0c7c
basic: Loading applet ...
basic: Initializing applet ...
basic: Starting applet ...
network: Connecting http://www.java.com/applet/testvm.class with proxy=DIRECT
network: Connecting http://www.java.com/applet/testvm.class with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/applet/testvm.class from cache
TestVM 3.1 kc
Copyright (c) 2005 Sun Microsystems, Inc.
All Rights Reserved.
basic: Loaded image: http://www.java.com/en/img/download/t1.gif
basic: Loaded image: http://www.java.com/en/img/download/t2.gif
basic: Loaded image: http://www.java.com/en/img/download/t3.gif
basic: Loaded image: http://www.java.com/en/img/download/t4.gif
basic: Loaded image: http://www.java.com/en/img/download/t5.gif
basic: Loaded image: http://www.java.com/en/img/download/t6.gif
basic: Loaded image: http://www.java.com/en/img/download/t7.gif
network: Connecting http://www.java.com/en/img/download/t1.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t1.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t1.gif from cache
network: Connecting http://www.java.com/en/img/download/t2.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t2.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t2.gif from cache
network: Connecting http://www.java.com/en/img/download/t3.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t3.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t3.gif from cache
network: Connecting http://www.java.com/en/img/download/t4.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t4.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t4.gif from cache
network: Connecting http://www.java.com/en/img/download/t5.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t5.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t5.gif from cache
network: Connecting http://www.java.com/en/img/download/t6.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t6.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t6.gif from cache
network: Connecting http://www.java.com/en/img/download/t7.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t7.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t7.gif from cache
basic: Stopping applet ...
basic: Removed progress listener: sun.plugin.util.GrayBoxPainter@19a0c7c
basic: Finding information ...
basic: Releasing classloader: sun.plugin.ClassLoaderInfo@f73c1, refcount=0
basic: Caching classloader: sun.plugin.ClassLoaderInfo@f73c1
basic: Current classloader cache size: 1
basic: Done ...
basic: Joining applet thread ...
basic: Destroying applet ...
basic: Disposing applet ...
basic: Quiting applet ...
basic: Joined applet thread ...
basic: Unregistered modality listener
basic: unique id: com_sun_deploy_AboutJava-1.5.0
basic: server port at: 2309
basic: getSingleInstanceFilename: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\tmp\si\com_sun_deploy_AboutJava-1.5.0_2309
basic: waiting connection
network: Connecting socket://127.0.0.1:2309 with proxy=DIRECT
basic: recv: javaws.singleinstance.stop
basic: getSingleInstanceFilename: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\tmp\si\com_sun_deploy_AboutJava-1.5.0_2309
basic: getSingleInstanceFilename: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\tmp\si\com_sun_deploy_AboutJava-1.5.0_2309
basic: removed SingleInstanceFile: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\tmp\si\com_sun_deploy_AboutJava-1.5.0_2309
basic: Registered modality listener
liveconnect: Invoking JS method: document
liveconnect: Invoking JS method: URL
basic: Referencing classloader: sun.plugin.ClassLoaderInfo@f73c1, refcount=1
basic: Added progress listener: sun.plugin.util.GrayBoxPainter@1e228bc
basic: Loading applet ...
basic: Initializing applet ...
basic: Starting applet ...
TestVM 3.1 kc
Copyright (c) 2005 Sun Microsystems, Inc.
All Rights Reserved.
basic: Loaded image: http://www.java.com/en/img/download/t1.gif
basic: Loaded image: http://www.java.com/en/img/download/t2.gif
basic: Loaded image: http://www.java.com/en/img/download/t3.gif
basic: Loaded image: http://www.java.com/en/img/download/t4.gif
basic: Loaded image: http://www.java.com/en/img/download/t5.gif
basic: Loaded image: http://www.java.com/en/img/download/t6.gif
basic: Loaded image: http://www.java.com/en/img/download/t7.gif
network: Connecting http://www.java.com/en/img/download/t1.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t1.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t1.gif from cache
network: Connecting http://www.java.com/en/img/download/t2.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t2.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t2.gif from cache
network: Connecting http://www.java.com/en/img/download/t3.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t3.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t3.gif from cache
network: Connecting http://www.java.com/en/img/download/t4.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t4.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t4.gif from cache
network: Connecting http://www.java.com/en/img/download/t5.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t5.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t5.gif from cache
network: Connecting http://www.java.com/en/img/download/t6.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t6.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t6.gif from cache
network: Connecting http://www.java.com/en/img/download/t7.gif with proxy=DIRECT
network: Connecting http://www.java.com/en/img/download/t7.gif with cookie "JSESSIONID=E4C78C2C09A916295DDBD9EAEE101C10.tomcat4; s_cc=true; s_sq"
basic: Loading http://www.java.com/en/img/download/t7.gif from cache
basic: unique id: com_sun_deploy_AboutJava-1.5.0
basic: server port at: 2335
basic: getSingleInstanceFilename: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\tmp\si\com_sun_deploy_AboutJava-1.5.0_2335
basic: waiting connection
basic: Modality pushed
network: Connecting socket://127.0.0.1:2335 with proxy=DIRECT
basic: Modality popped
basic: recv: javaws.singleinstance.stop
basic: getSingleInstanceFilename: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\tmp\si\com_sun_deploy_AboutJava-1.5.0_2335
basic: getSingleInstanceFilename: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\tmp\si\com_sun_deploy_AboutJava-1.5.0_2335
basic: removed SingleInstanceFile: C:\Documents and Settings\Compaq_Owner\Application Data\Sun\Java\Deployment\tmp\si\com_sun_deploy_AboutJava-1.5.0_2335

Adding an image in a java applet

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