Solved

Applet doesn't display in browser (IE6)

Posted on 2002-07-04
8
356 Views
Last Modified: 2010-03-31
I've just installed the J2SDK 1.4.0 and successfully got it to compile and run some examples from the Java tutorial, but now I want to get an applet to work.

It compiles without problem, but when I go to view it in IE6, it displays only a gray area that is the size specified in the <applet> tag. Why wouldn't it be loading?

I know Java is enabled and all because I could open up an applet from a tutorial I did like a year ago. Even when I take the exact same source code that was use for that working applet....if I compile it again in a different folder, then include that .class in an .html file, it displays nothing but a gray box.

(When I copy the .class file that works from the old folder to the new folder, and then open the .html file in the browser, it works, and then continues to work when I recompile the source code, but I think that's only because it uses the old .class file it has cached, because when I rename the class and all the filenames and try recompiling, it gives the same old gray rectangle.)

Also, I'm able to load all the applets I compile by using appletviewer, so it seems that the applet itself is okay. It must be something wrong with IE loading the applet? Has anyone had this problem before?

Oh, and I just tried it in Mozilla 1 and it works, so what's up with IE that it can't open my applets?

(OS: Win2000)
0
Comment
Question by:TylerRick
  • 3
  • 2
  • 2
  • +1
8 Comments
 
LVL 9

Accepted Solution

by:
yongsing earned 100 total points
ID: 7131096
It's a versioning problem. A 1.4 compiled applet is not able to run in IE and Netscape, which are based on the 1.1 platform. Compile your code again with the -target option:

javac -target 1.1 YourApplet.java

This time, it should work.
0
 
LVL 92

Expert Comment

by:objects
ID: 7131311
Have a look in the Java console and see what the error is thats causing it to not start.
0
 
LVL 9

Expert Comment

by:yongsing
ID: 7131425
There are some new language features in 1.4. Sun doesn't want you to attempt running a 1.4 compiled code on a 1.1 VM. On Netscape, you will get a ClassFormatError. Beside compiling with the -target option, the alternative is to use the Java Plugin.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 7131677
First, you better check that you can run applets in IE6 at all http://www.w3.org/Protocols/Time/
ASFAIK IE6 comes *without* Java by default.
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 92

Expert Comment

by:objects
ID: 7133039
> IE6 comes *without* Java by default.

Only on XP.

But if J2SDK is installed then there's a good chance that the plugin is installed.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 7133044
>>Only on XP

Got you
0
 
LVL 92

Expert Comment

by:objects
ID: 7133064
And they've recently announced that it will be included in the first service pack for XP.
0
 

Author Comment

by:TylerRick
ID: 7681764
I just noticed that this question was still open, so I'm just choosing an arbitrary answer. Sorry for not doing it sooner. I don't even remember what I did that got it to work, if I did.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Viewers will learn one way to get user input in Java. Introduce the Scanner object: Declare the variable that stores the user input: An example prompting the user for input: Methods you need to invoke in order to properly get  user input:
This video teaches viewers about errors in exception handling.

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

27 Experts available now in Live!

Get 1:1 Help Now