I know why should i handle exception.

Question

now something that bothers me why in the world do i need to raise exception.
i mean what is the purpose of raising an exception.

Answer 1

To know of something unusual has occured in your code and take measures against it or correct what is causing it. It can also be used to alert you in case a specific condition or scenario occurs and you want to send an alert to message.

Answer 2

Imagine you are playing an online game.
Suddenly your internet cuts off and you will be displayed message like this :-
Check your internet connection.

What if it is:-
Error in java.awt.somestuff.¥yriw784.idjs.hrij.comndos.so cid.zi

Well,that doesn't​ help.Hence handling exceptions is a good habit:-)

Answer 3

if something unusual happens.
my code will terminate. is not that enough for knowing something is wrong with my code