Sun Microsystems released the first public implementation as Java 1.0 in 1995. Initially it was called as Oak. Then they renamed it as "JAVA". James Gosling was the person who developed it.
Java is purely Object oriented as it follows all the oops principles such as
It is used to create stand-alone applications, net based programs and programs for consumer devices.
Example: cellular phones, palm pilots
Java is Basically divided into
1. J2SE: Java To Standard Edition. (All Core Concepts).
2. J2EE: Java To Enterprise Edition. (All Advance Concepts).
3. J2ME: Java To Mobile Edition (All Mobile Applications).
Features Of Java:
The advance technologies that are in the present market are
At present there is lot of demand for the certified people in the market. Not only in India but also in foreign countries like U.S, Australia, Nigeria, Saudi etc.
The fee structure for one java certification voucher is around Rs.6,500.
There are different certification levels in java such as
comparison between DOS (COMMAND.COM and MS/Windows NT CMD.EXE shell commands) and the equivalent Linux/Unix or Bash shell commands
Installing Flash Player Plugin on Firefox without having Administrator Access or Premissions
UPDATE: The following guide, originally written for Firefox 2, has been used successfully on Firefox 3, Firefox 3.5 and Firefox 3.6. Users of Firefox Portable edition (versions 3, 3.5 and 3.6) also have been successful using this guide.
The Windows computers available at my University permits login only by autenticated users (students) who don't have Administrator access and permissions.
Installing software on those PC is then not possible.
Recently they finally installed Firefox 2 but without the Flash plugins, which is absolutly useful/needed.
I then tryed to install the Flash Player using the "standard" way (click on the missing plugin link then install the plugin..). However without administrator plugins it was not possible to install.
Then I started doing some tests trying to install the plugin manually. Now I have it installed and working perfectly!
This is how I managed to install it without administrator permissions:
- Download the XPI archive of the Flash Player Plugin to your hard disk (right click on the download link then "Save link as.."). XPI archives are only ZIP files containing the files used by the plugins.
- So you can safely rename the file you just downloaded, called flashplayer-win.xpi, into flashplayer-win.zip (you are changing its extension from .xpi to .zip)
- Extract the files in the archive. You can use any program capable of opening .zip files (WinZip, WinRAR or the free and great 7-zip). There are also websites which can uncompress archives: wobzip.org.
- Copy the files flashplayer.xpt and NPSWF32.dll to %APPDATA%\Mozilla\Plugins\
- %APPDATA% is not a real folder. It's an alias. By inserting it in your windows explorer address bar, you'll be redirected to the real folder which holds your applications profiles and settings. The location of this folder depends on various setting that's why we need the alias and not an absolute path.
- You can open this folder simply choosing "Start → Run → Type in %APPDATA% → OK".
- In case you don't have a Plugins folder you can create one and place your files there.
- Restart Firefox
- Enjoy your flash websites!
Dual booting means that there are two or more operating systems installed on the same computer and that the user is given the choice by the bootloader at boot time to choose the OS to use. Usually the choice for the other OS besides Linux is a version of Windows.
First, install Windows, then install Linux. For all modern distributions (tested with SUSE and Ubuntu ), the Linux installer will offer to create a grub bootloader that lets you choose at computer startup if you want to run Linux or Windows.
The bootloader for Mac OSX is yaboot. It has support for dual booting.
Tricks if things don't work
You don't need the installer if you have a Live CD which can boot you into a desktop/kernel command prompt.
The standard method to get to into a distress Linux is by "change root" whereby you "jump" from the Live CD Linux into another Linux installed in a hard disk.
After you boot to a Live CD, click terminal, do a su and supply the root password if demanded, make a tempoary directory in /mnt, mount it, chroot and enjoy the access to the distressed Linux. Assuming your Linux / is in hda2. You type
mount /dev/hda2 /mnt/hda2
At this point onward you are inside the Linux installed in hda2 and can do whatever you like with it. With a bit of luck you can even access to the desktop by just typing
Here's how I found out by trial and error. Assuming you have Windows and a Linux distro installed on the the same drive or two drives as I have. Check this link for getting boot loader back onto the first sector. http://geocities.com/epark/linux/grub-w2k-HOWTO.html When you have that set up,
- Boot Windows
- Obtain bootpart.exe (http://www.winimage.com/bootpart.htm) You need a zip utility for this.
- Extract to C:\
- Open a command prompt, type bootpart
- Note the number that corresponds to Linux (usally 1 or 2)
- At the command promt, type:
bootpart 2 bootsect.lnx YourDistro (mine's Fedora)
(Replace the "2" with the appropriate partition number noted in step 5
- Reboot, you are finished. Boot options will display at the next boot.
No changes are made to the Windows MBR.
Another thing I found out about Vista. I had WindowsXP obn the first sector of my first hard drive and Fedora on a second drive. After installing Vista, on re-boot there was XP and Fedora, Vista found them and now I can boot into Fedora or XP from Vista, neat eh?