241.What is the importance of finally block in exception handling?

242. What is the base class for Error and Exception?

243. What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy?

244. How do you connect to a MySql Database using JDBC?

245. How to profile heap usage?

246. How do you set Java Library path programmatically?

247.What are wrapped classes?

248.What is the difference between yielding and sleeping?

249. Which method of the Component class is used to set the position and size of a component?

250. Explain the usage of java.util.Date and more classes and APIs for date handling in Java?

251. How is rounding performed under integer division?

252.Can you instantiate the Math class?

253.Does garbage collection guarantee that a program will not run out of memory?

254. What is finally in Exception handling?

255. What is serializable interface?

256. How can you get the hostname on the basis of IP addres ?

257. If the method to be overridden has access type 'protected', can subclass have the access type as 'private'?

258. How does multithreading take place on a computer with a single CPU?

259. What is difference between trusted and untrusted applet?

260.Should one pool objects to help Garbage Collector?Should one call System.gc() periodically?

261. What is the difference between class variable, member variable and automatic(local) variable?

262.What is the difference between Application and Applet?

263. What is the difference between Serializable and Externalizable interface?

264.What is the difference between Java class and bean?

265.Explain final modifier.

266. Differentiate TYPE_SCROLL_INSENSITIVE and TYPE_SCROLL_SENSITIVE?

267. When does the compiler insist that the class must be abstract?

268. When do you use 'continue' and 'break' statements?

269. What is a user-defined exception?

270. What is an Assertion and why using assertion in your program is a good idea ?

271.Why a abstract method cannot be static?

272. What is the difference between JVM and JRE?

273.An application has a lot of threads and is running out of memory, why?

274. Where can static modifiers be used?

275.Can protected or friendly features be accessed from different packages?

276. What situations are best suitable for implementing assertions?

277. What is static initializer code?

278. How JVM performs Thread Synchronization?

279.How do you call a stored procedure in Java?

280.What is the purpose of assert keyword used in JDK1.4.x?

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