Phone rebooting

Do you use a task killer?
Because either you have a task killer and its killing a core app that causing this, or you have a genuine fault.
Hard reset the phone, format your SD card, if the issue still, then phone needs a warrenty claim.

Java Programming

 

Here’s the thing… Android task killers improve your phone's performance while also boosting battery life—or at least that's the much-debated promise. but in fact they cause more issues than they solve.
You are likely doing more harm than good by killing tasks that aren’t ready to end. I was the same way when I first got my first phone. There were tons of things running that I didn’t want so I just kept killing them. After a few weeks I realized that if I stopped using a task killer (and totally uninstalled it in fact) my phone actually began to run better! The applications would close themselves and things just seemed to be running better.
So just try to uninstall the one that you have to make sure that it wasn't causing the problem that you have, then, If you are absolutely going to use a Task killer, be careful. Also, please try running without one, you might be pleasantly surprised.

Java Programming