Ubuntu : Java alternatives

Ubuntu will include openJDK by default. If you install some other version or Sun JDK, then the first installation is set to be the default one.

To check if there are any other java installations:

update-java-alternatives -l

Change the default to any of them:

update-java-alternatives -s NAME-OF-IT

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Ubuntu: Access a usb flash drive from the terminal

1. Find what the drive is called You'll need to know what the drive is called to mount it. To do that fire off: sudo fdisk -l You're looking for a partition that should look something like: /dev/sdb1 . Remember what it's called. 2. Create a mount point Create a new directory in /media so you can mount the drive onto the filesystem: sudo mkdir /media/usb 3. Mount! sudo mount /dev/sdb1 /media/usb When you're done, just fire off: sudo umount /media/usb Source: StackOverflow

Code for Php based online Treasure Hunt

Hello guys. Some time back I organized an online treasure hunt as part of an event at my college. I thought of sharing the code with you, as you might find it useful. So, I uploaded it on github and here is the link to my repository. Download it from here , and enjoy organizing the game

Create your own custom ROM for any Android device (from XDA)

Don't want to spend time reading? Have a look at the videos here You can find a detailed guide, which keeps on updating in this thread . This guide is for the one who have little experience with Android. Also covers some good advanced topics.

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