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Exception handling: grab and throw model

2022-04-23 06:00:00 【hanyc..】

Process one ：“ throw ”： The program is in the process of normal execution , Once something unusual happens , An object corresponding to the exception class will be generated at the exception code , And throw this object . Once the object is thrown , The subsequent code is no longer executed .

On the generation of abnormal objects :
① The system automatically generates exception objects ;
② Manually generate an exception object , And throw （throw）

Process two ：“ Catch ”： It can be understood as an exception handling method ：
（1）try-catch-finally
（2）throws

throw： A way of generating exception objects , Manually generate an exception object ;（ Located in the method body ）

throws： One way to handle exceptions ;（ At the method declaration ）

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https://yzsam.com/2022/04/202204230541160635.html

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