If a method calls another method and that method throw an exception then caller method must be throw that exception or not?
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Answer:
If method A calls method B and method B throws an exception, then method A must handle that exception. It does not have to throw the exception if it is in a try-catch block, but it must do something to deal with it. Note that this only applies to checked exceptions. If method B throws an unchecked exception, then A is allowed to ignore it.
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