could please answer this Q

[zaghal mohd]

there is any conditions to use try{} catch{}
or throws and what is the differnt betwen them

[Corey McGlone]

I'm confused. Your question is very vague. Is there something, in particular, that you're confused about concerning exception handling? Perhaps, if you provide some more details, we can help more. For now, all I can do is point you to some articles concerning exception handling.
Exceptions in Java
Designing with Exceptions
I hope that helps a little,
Corey

[Anthony Villanueva]

If you are calling a method that throws a checked exception, the calling method must either deal with the checked exception with a try-catch block or rethrow it by explicitly declaring it in its throws clause.

[zaghal mohd]

What I mean it concerning exception we have to way that we can throw exceptions one must deal with (try catch block) and other using (throw) clause there is any conditions that give me choice to chose any one or it open door to use any one

[Snigdha Solanki]

If your program throws a checked exception then either you have to use try/catch block or you can use throws keyword in the method defintion.
I guess you can use throws in cases where you just want to ignore the exception. In the other approach you can catch the exception and take any relevant action.