Setting up JAVA SDK, and running first Hello World Program

I'm new to JAVA, and want to setup JAVA Compiler in my Laptop, but my seniors preferred me to use JAVA using Notepad, instead of using BlueJ or any other software. So I agree with them and Downloaded JAVA SDK 7, but when I try to run my first program (Which is Hello World!), I don't know why but that didn't work. Its not the JAVA syntax related error, but problem related to setting up compilet. Because it is saying 'javac' is not recognized as an internal or external command, operable program or batch file. After a little research I foud solution. This Tutorial Will guide you to how to setup JAVA Compiler, and run your first Hello World Program.

Internet Explorer 10 Windows 8 Tile is replaced by Desktop IE10, get back

On my laptop I am permanently using Windows 8 Release Preview, I also found few bugs, and I reported that. Since I've mostly all browser installed in my system (Maxthon, Google Chrome, Mozilla Firefox, Opera). I've just noticed after setting my browser Google Chrome as default, I lost my Windows 8 Internet Explorer 10 (formerly Metro Internet Explorer 10). And this is how I just recover it, it's a simple process.

Windows 8 Network Data Counter

It's a new feature I just discovered in Windows 8 Release Preview, that unlike Windows previous releases it also includes a Bandwidth Counter by default. I've few Wi-Fi routers set-up in my Hostel, and mostly I uses two, I am to check which Wi-Fi router has been transferred how much data. Read more to know how to check it.