if you break into a house,with no weapon no1 was in the house,u didnt steal anything,u have no criminal record ur only 16. how much trouble u be...

This person will probably be charged with " breaking and
entering" which is a felony in all jurisdictions. You relay some good information in the
question. You mention that no one was hurt, nothing was stolen, and a weapon was not
used. This is all very good news because anything to the contrary would compound the
situation and make the charges more severe. That being said, B and E is still a very
serious criminal charge.

The DA or District Attorney in
your jurisdiction will decide whether to prosecute the crime or not. Given the offenders
background (never been in trouble before) and the facts of the case, the lack of
aggravating circumstances ( no weapon, no theft, etc.), and the age of the perpetrator
(young), the DA may choose not to prosecute this crime at all. However, if prosecution
proceeds, the offender will probably get a probated sentence, or be placed on
probation.  I seriously doubt any jail time will be served in this scenario. Further, I
doubt that any detention whatsoever will occur.

One the
other hand, if it is an election year (DA's are elected), you could very well be made an
example and you could be prosecuted fully. You could be sentenced to a year in jail, but
then you would probably get out after serving a couple of
months.

I strongly suggest you contact a reputable criminal
defense attorney if you haven't already.