Core Java preguntas y respuestas de entrevista
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Pregunta 176. What is the base class for Error and Exception?
Throwable
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Pregunta 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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Pregunta 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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Pregunta 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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Pregunta 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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Lo mas util segun los usuarios:
- How could Java classes direct program messages to the system console, but error messages, say to a file?
- What are the differences between an interface and an abstract class?
- Why would you use a synchronized block vs. synchronized method?
- How can you force garbage collection?
- What are the differences between the methods sleep() and wait()?