A detailed analysis of the try, catch, finally in Java

From: http://www.cnblogs.com/aigongsi/archive/2012/04/19/2457735.html

To summarize all the examples

1 in a try, catch, finally statement, if the try statement has a return statement, then the value of the variable in the current try is returned, and any subsequent modifications to the variable do not affect the return value in the try

2 If there is a return statement in the finally block, returns the return statement in the try or catch is ignored.

3 If an exception is thrown in a finally block, an exception is thrown in the entire try, catch, finally block

So the use of try, catch, and finally statement blocks should be noted

1 Use the return statement as much as possible in a try or catch. It is not feasible to modify the return value of a try or catch by reaching the finally block.

Avoid using the return statement in the 2 finally block, because if the return statement is used in the finally block, the exception information in the try, catch block is displayed, shielding the error from occurring

3 Finally block avoid throwing an exception again, otherwise the entire method containing the try statement block throws an exception, and the exception in the try, catch block is digested

A detailed analysis of the try, catch, finally in Java