Computer Related stuff which occupied me, and now occupies - you :-)
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Help me become a great Java developer - What should I learn?
This is the subject of an email I got today, the rest of the email is as follows: Hi Chaiavi,
I didn't work on java for a while now, i am trying to become the best Java developer ever - well not ever there will always be you ;-) so that in the future job interviews i will actually know something :-)
and i need your help to guide me in the right direction :- where to start? what are more/less impotent subjects? what are the best places to learn from, so that I will learn a lot in short time with as little effort as possible that it will be easy fun and not boring and that I can finish before the next job interview (whenever it will be)
i am looking for online sites, video eLearning and even books if they are really good (since books takes a lot of time to learn from)
you know what, ignore everything i just said and just guide me into becoming the great Java developer i can be.
Well, this was my answer, maybe some of it can help someone else also: Dear Joe,
I thought about the issue since you sent me the email till now...
What is the easiest way to gaining the most with least effort.
Well, as you well know, there is no magic here, and in order to become really the best Java programmer you can be, you must work hard; no lottery tickets here.
But, I can give you some tips from my experience.
So here it comes:
I do think that at least one book should be considered to be learned, it could be any book, though i won't recommend on learning a book that specifies in one area (such as xml, webservices, threads etc), learn a general java book, and here I would recommend a specific one, I heard great recommendations for "Thinking in Java" by Bruce Eckel.
If you can buy the fourth edition it will be great, it contains more up to date information (java 6 etc), and also if you'll buy it you will feel obligated to reading it, if you don't want to buy it, you can learn from the electronic book which Bruce offers for free:
Now, about some videos, I still recommend the great 7 disc learning software (AppDev) I have bought several years ago, in fact, I myself, am learning from it in my lunch breaks (I've just finished the 4th disc, and now hear it for the second time).
I also recommend Mark Dexter's nice Flash tutorials residing in Eclipse's web site.
Start from the Java for beginners (3 hours in 17 lessons or so):
I do think that you should also read some material from the web, specific material, focus on subjects in Java you have worked on like JSF - you already worked with JSF so learning a little about it won't be too hard, and when the "future boss" will ask you what you worked on, you can be more specific and impress him.
Another little advice, I know that I learn better when i'm not at home - get out, go to the University and learn, go to a library and learn, or else... it won't happen.
And the last and most effective advice:
Start Programming - Only when you program something, you feel the real thing, and you learn through your fingers how to do it best.
Yesterday, a friend asked me to find him a ZVR sound file converter.
What's the problem? I asked...
Give me 5 minutes and i'll google it out.
Well, I was wrong, finding a decent converter isn't an easy task, it took me at least 7 minutes (kidding).
What's a ZVR file?
It's a dictation recorder output file, used by the korean SAFA company, their recording machine is used mainly to capture sound files using its microphone during class lessons or whenever one wants.
I just don't get it, why each company comes up with its own sound format? grab a good and free existing audio format and stick to it!
The ZVR files are very small hence their low quality...
Anyway, a nice ZVR to WAV file converter was found.
It's an incredibly small file (140kb). Download ZVR sound file converter
Lets say you want to read the contents of an android apk file.
Maybe it's yours and you want to be sure of the version, maybe you want to see if the code in that apk contains the latest feature you inserted. Or maybe it isn't your code but you want to check something with someone else's code (without breaking any license etc). In a nutshell - What are the steps one should take in order to explore an apk file?
1. Only read the manifest contents of an apk:
Use the following command (make sure you have aapt.exe and the apk file on your path):
aapt dump badging XXYY.apk
[Later Edit] 1.5 You want to change some resources of the apk using a nice GUI
Try APK Edit - It will enable you to do the following:
Change icons of your android application.Change the applications name.Edit the localized text (Strings.xml) used in applications.
2. You want to read all of the apk's contents:
Method A. Use the following tool: apktool (apktool d filename.apk) [It will generate .smali fil…