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checked exception

 
Ranch Hand
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Which of the following are checked exceptions?

a] InterruptedException
b] EmptyStackException
c] FileNotFoundException
d] ClassCastException
e] NullPointerException
f] MalformedURLException

ans given is a,c,f
could annyone p;ease expaln me what are checked exception in context of the exception given
book says that unchecked exception ar those whicvh cannot be handled
and checked exception are those which can be checked through our program but
how this applies to the above options
 
mister krabs
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Checked exceptions are those that must be either caught or thrown in the method definition.
 
Greenhorn
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Check this explanation on sun's website. http://java.sun.com/docs/books/tutorial/essential/exceptions/catchOrDeclare.html
 
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