File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
The moose likes Beginning Java and the fly likes class file viewer Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Murach's Java Servlets and JSP this week in the Servlets forum!
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "class file viewer" Watch "class file viewer" New topic
Author

class file viewer

vivien siu
Ranch Hand

Joined: Nov 10, 2005
Posts: 143
Hi guys, is there any software/freeware to view .class files?


I'm not available, my BF's name is WORK.
Ulf Dittmer
Marshal

Joined: Mar 22, 2005
Posts: 41060
    
  43
The simplest option is to use the "javap" command line tool that comes with the JDK.

If you're looking for a GUI, check out jclasslib.


Ping & DNS - my free Android networking tools app
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14074
    
  16

Well, what exactly do you mean with "viewing .class files"?

There are a number of Java decompilers available, which can translate the byte code in a class file back to source code (or something that looks like the original source code).

For example: DJ Java Decompiler, JAD. Search for "Java decompiler" on Google for more.


Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 7 API documentation
Scala Notes - My blog about Scala
vivien siu
Ranch Hand

Joined: Nov 10, 2005
Posts: 143
yup I was looking for a java decompiler software, thanks!
Srinivas Kalvala
Ranch Hand

Joined: Oct 20, 2005
Posts: 257

Hello,

Some people obfuscate the code, so dont believe the code generated by the decompiler as such. Just have some hands on work ....
Peter Chase
Ranch Hand

Joined: Oct 30, 2001
Posts: 1970
And remember that it is illegal and/or immoral to decompile a third-party class file, to try to replicate, crack or alter it, against the wishes and/or licence of the third party.


Betty Rubble? Well, I would go with Betty... but I'd be thinking of Wilma.
vivien siu
Ranch Hand

Joined: Nov 10, 2005
Posts: 143
It's ok Peter, I'm just looking at some old codes done by my colleagues. There are only .class files available in the server.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: class file viewer
 
Similar Threads
Doubt about diagram class (realization)
WA #1.....word association
can non-static inner class access any member
andrew has wii
Doubt about diagram class