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JAVA . In which of these instances is it a good idea to use throwing an...

JAVA . In which of these instances is it a good idea to use throwing an exception. it can be chose as multiply

Opening a file

Calling a method on an object

Possibly dividing by zero

Connecting to a network stream

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Answer #1 
to use throwing an exception are
a good ideaOpening a file
Possibly dividing by zero
Connecting to a network stream

Options 1,3,4

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