Core Java 面试题与答案
Test your skills through the online practice test: Core Java Quiz Online Practice Test
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问题 176. What is the base class for Error and Exception?
Throwable
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问题 177. What is the implementation of destroy method in java.. is it native or java code?
This method is not implemented.
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问题 178. What is the purpose of finalization?
The purpose of finalization is to give an unreachable object the opportunity to perform any cleanup processing before the object is garbage collected.
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问题 179. How many times may an object's finalize() method be invoked by the garbage collector?
An object's finalize() method may only be invoked once by the garbage collector.
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问题 180. What is the purpose of the finally clause of a try-catch-finally statement?
The finally clause is used to provide the capability to execute code no matter whether or not an exception is thrown or caught.
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