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  Home Placement Paper Kit Technical Questions ► Java ▼

321.Can a catch block exist without a try block?

322.What is the implementation of destroy method in java.. is it native or java code?

323. What is a class loader and what is its responsibilities?

324.What is Java class file's magic number?

325.If you have static block, constructor and main method in Java file then what will be the sequence of method calls?

326.Class C implements Interface I containing method m1 and m2 declarations. Class C has provided implementation for method m2. Can i create an object of Clas

327.Name interfaces without a method ?

328.Name 2 calsses you have used ?

329. What is meant by a super class and how can you call a super class ?

330. What value does read() return when it has reached the end of a file?

331. What are the constraints imposed by overriding on exception handling?

332. What is the difference between java.applet.* and java.applet.Applet ?

333.What is meant by identifiers ?

334. Difference between Event propagation & Event delegation

335. Can a main() method of class be invoked in another class?

336.What is RMI?

337.How many forms of assertions we have?

338. What's the difference between J2SDK 1.5 and J2SDK 5.0?

339. How do you know if an explicit object casting is needed?

340.What is the difference between a public and a non-public class?

341.What is Collection?

342.What restrictions are placed on method overriding?

343.Can a class declared as private be accessed outside it's package?

344.Can a abstract class be defined without any abstract methods?

345.What is numeric promotion?

346. What modifiers can be used with a local inner class?

347.What restrictions are placed on the values of each case of a switch statement?

348. What is a native method?

349.What is the difference between an abstract class and an interface?

350. What do you mean by platform independence?

351. What are the problems faced by Java programmers in absence of layout managers?

352. Which java.util classes and interfaces support event handling?

353.What is the arguement of main method?

354. What are lightweight and heavyweight components ?

355.What is Synchronization?

356. If you use super() or this() in a constructor where should it appear in the constructor?

357.What is an anonymous class?

358. What can prevent the execution of the code in finally block?

359.Does Java support multi dimensional arrays?

360.What is skeleton and stub? what is the purpose of those?


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