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I am looking for answers for the questions Can a java developer create an executable jar as in ".exe" file? Why it to be created and where it is used? Please brothers help me with these questions. Interviewer has asked me this questions because of these questions I got rejected. So please help me to know better about this.
Yeah you can transform a jar -> exe and it is mostly used to make a jar run easily on windows. If you double click a jar file it doesn't mean it has to be executed as well, but using an exe ensures this. Also you secure your jar a bit from decompiling.
But I really don't believe that such a question rejects you from a job offer ^^
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i've to modify a plugin for my minecraft server (yes, i'm allowed to do it).
The problem is that the files that i've to modify have .class extension and despite a found a way to see those files with jd-Gui, i did not found a way to edit them. Can you please explain me step by step how to do it?
p.s. I use MacOsX system.
Thanks to all of you.
It is not a good idea to edit .class files because of dependencies and relationship with other classes. Also because .class contains byte information and not recommended (not possible in many cases) to edit it manually. The file is generated when you compile your java file. So, find the java source file, compile it, and it will update the .class file.
Good luck.
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i used JRebel for few days...but using eclipse Kepler version i did not feel much difference in program execution and Project build, i followed same procedure as they mentioned on their official website. Does JRebel really improve programming efficiency ?
I think this question might get closed as it is very generic but if it doesn't then I think JRebel does not speed up build time or execution but allows classes to be updated on the fly. This can negate the need for server restarts in web development and it is here where JRebel will save time (the time it takes to restart and redeploy an application once a class file is changed.
There is a nice video here
http://zeroturnaround.com/software/jrebel/
Hope this helps
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I have to make app using java technology and it should work same as drop box is working. So can you suggest how to start or which jar is required for it?
From the question it looks like you are new to Java. So your best bet would be to use an existing library to do the sync. Java is often not considered the ideal choice for file intensive tasks due to performance issues.
eg:
http://jfilesync.sourceforge.net/
Also see this: https://stackoverflow.com/questions/2283958/java-folder-synchronisation-class-library
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I've searched in Internet about burning CD/DVD that can work either in Linux and Windows. but unfortunately, I couldn't find a good solution.
Somebody suggested me, use commands line that related to Operating system. but I think it'd better write a good code that be able to use everywhere.
All my needs are described below:
get list of accessible driver name
get list of writer speed that any driver can do.
burn CD/DVD
So, If you can solve this problem, help me.
Thank you
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I have created a java based project using Netbeans as an IDE. Now I want to obfuscate my project. How can this be done?
You need to use a source obfuscator.
I have used Zelix Klassmaster in the past and it is pretty good.
I have used RetroGuard and i was really happy with it. The thing I really liked was the ability to use it from my build file, so that I could deploy the project directly obfuscated.
Take a look at proguard - you can integrate it into ANT.