How To Install & Configure Java JDK On Your Computer?

How to enable your computer for java programming?

First,download Java Development Kit(JDK) form one of the following addresses-

http://www.oracle.com/technetwork/java/javase/downloads/index.html

http://download.cnet.com/Java-Development-Kit-32-bit/3000-2218_4-12091.html

http://download.cnet.com/Java-Development-Kit-64-Bit/3000-2218_4-75317068.html

http://java-development-kit-jdk.en.softonic.com/

Double click the downloaded file(in our example,it should be named as  jdk-7u6-windows-i586.exe) and follow the installation process,there will be two installations,one for the JDK, another is JRE(Java Runtime Environment).

After the installation,go to Command Prompt by pressing Windows Key+R. Type java -version and hit enter,it'll show interpreter's version. Then type javac -version and hit enter. If the javac command completed successfully then you don't have to follow the steps below. But,if you get an error like this-  'javac' is not recognized as an internal or external command,operable program or batch file ,then do the following-

Go to Start -> Control Panel -> System -> Advanced System Settings -> Environment Variables, select the system varable named "Path" and click the Edit button. Add the address of java's bin sub-directory at the end of the list in the Variable Value field(in our example C:\Program Files\Java\jdk1.7.0_06\bin) then click the ok button.

To test the environment open command prompt by pressing Windows Key+R.

Type java -version and hit enter to see interpreter's version number.

And type javac -version and hit enter to see compiler's version number.

Both the versions should match. If it matches,you're ready to do java programming!

Note: Other than java programming,if you install the jdk,you'll be able to run java-archives(i.e .jar files) on your computer! There are plenty of java applets(small applications) are available on the internet for free! Also java is needed for surfing various internet sites.

That's all!

If you like my article,please join my blog by "Join This Blog" option at the top right section of this blog.

And most importantly,don't forget to visit my youtube channel at-

http://www.youtube.com/sujoyn70

I've uploaded many videos about calculator tricks,math and engineering tutorials,electronics DIY projects,technology how-to videos,funny animal videos,travel videos etc in my youtube channel.

Thanks for reading!

Windows 7 Not Detecting External Hard Disk_Solved!

Hi friends,

Last week,I brought my friend's Seagate 2TB external hard disk to backup some files on my computer. That hard disk runs on 9v ac adaptor,connect the adaptor to ac 220v supply,and connect usb port to pc and work. I connected the adaptor to mains,and usb to my Acer Aspire One h532 netbook,led light on harkdisk glew,my windows 7 given regular "ping" sound confirming that it has detected the harddisk,but the device is not showing on My Computer! I waited for few minutes,tried refreshing my computer,still no signs of harddisk! I connected the harddisk to another desktop computers having Windows7 and Windows XP,it worked for both. I again tried connecting the harddisk to other two usb ports on my netbook,didn't help! Then I ran my genius brain ;-) and solved the problem! Here's how-

Right click on "computer" (previously called my computer),choose "manage", choose "device manager",expand "universal serial bus controller",select your problematic device(in my case,it was named 'external'),right click on it,and select "uninstall". After the uniinstallation process,.disconnect the device from your computer and restart your computer. Now after restart,reconnect your device,this time windows should detect your device and and automatically reinstall required drivers for it,you can see the progress in taskbar.

If this trick does not work,and you're confirmed that the device is ok,you can perform a "system restore" from "start menu",type 'restore',and choose "system restore",and follow the on screen instructions,in Windows7.


I've uploaded many more videos about calculator tricks,math tutorials,electronics DIY projects,technology how-to videos,funny animal videos,travel videos. My one video about casio calculator has got record number of views! Please visit my Youtube channel- http://www.youtube.com/sujoyn70 to see them. Don't forget to subscribe! By that you'll be notified by email whenever I upload a new video!

Thanks for reading!

How To Read Ebooks On Any Mobile Phone

Well I love reading books! In my childhood,I was a huge fan of comics! Still now,whenever I get leisure time(from exploring my phones!),I take a good book and go straight to my bed. But in this busy lifestyle,its very hard to get enough free time to settle on reading a book. So what's the solution? Read ebooks,on your phone! Because it's the device you carry always with you. And I prefer ebooks because,it's easy to get,read and share. And,the best part is,the books which are very difficult to get on a paperback version,can be found on the internet very easily,and most of the times,completely free!

So,how to do that?

• First,for china mobile phones or Spice,Micromax these kinds of phones-

Simply get the books in .pdf .doc .txt format,open it and copy the whole text. Paste it in notepad,and save as a .txt file with UTF-8 encoding,its the most common encoding used on all types of phones. Transfer it to your phone's memory card's "e-book" folder. If there is not any folder of the name,create one.
Now,if your phone has a inbuilt ebook reader,like my Spice phone has. Read ebook by that application. Or if your phone supports java,download the application "Anyview 4.0" from the link below. It's the best ebook reader for java phones,has some very good features.

Or if your phone neither have ebook reader built-in,nor supports java; just try to open the .txt file from file manager,most chinese phones support .txt format,but you could not make bookmarks in that case.

• For Java enabled phones like Nokia,Samsung,Sony Ericsson phones-

Download "Anyview 4.0" and read ebooks. You can try another cool application to read,download and explore thousand of online and offline ebooks,download application "Wattpad" from the link below.

• For Nokia S60v3 phones like N79,N82,6220 etc-

Download "Q-reader" to read .txt ebook or you can use "Anyview" as well. To read .pdf books,Adobe Pdf Reader comes built-in with most of S60v3 phones.

• For Nokia touch screen phones like 5800,5233,X6 etc-

Download the application "Alternative Pdf Reader" to read .pdf ebooks or comics on your phone's 3.2" display! It's a mind blowing experience to read comics on these phones! Download from the link below.

Download Anyview- http://www.plunder.com/anyview-4-download-ab6aaf2832.htm

Download Wattpad- http://www.plunder.com/Wattpad-zip-download-5cd0f889c4.htm

Download Alternative Pdf Reader- http://www.plunder.com/Alternate-Reader-by-SymbianPoint-com-download-4e3f11a3a6.htm

That's all!

If you like my post,please follow me by the "Follow" option at the top right section of this blog. You can also follow me on Orkut,Twitter,Facebook,my id is Sujoy70.

Thanks for reading!