What is Externalizable interface?

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Externalizable is an interface which contains two methods readExternal and writeExternal. These methods give you a control over the serialization mechanism.

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What is Externalizable interface?

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228. If System.exit (0); is written at the end of the try block, will the finally block still execute?

229. What is daemon thread?

230. Which method is used to create the daemon thread?

231. Which method must be implemented by all threads?

232. What is the GregorianCalendar class?

233. What is the SimpleTimeZone class?

234. What is the difference between the size and capacity of a Vector?

235. Can a vector contain heterogenous objects?

236. What is an enumeration?

237. What is difference between Path and Classpath?