Java J2EE Interview Questions
Questions Answers Views Company eMail

What releases of Java technology are currently available? What do they contain?

1 1867

What restrictions are placed on method overloading and method overriding?

5 29364

What are the standards to place package statement within a source code file?

1 2800

What is the return type of read()?

3 5800

What is the return type of readLine() when end of a file is reached?

2 10607

What for read() function?

3 7732

What happens to the Exception object after handling an exception?

1791

What is stop(), suspend(), resume() method?

3 23867

What are MalformedURLException and UnknownHost Exceptions and whey they will be thrown?

2 3604

Under what circumstances an object reference be cast to an interface reference?

3 6869

When do you create an index?

1550

When does Exception occurs?

3 5073

In what circumstances, compiler will supply a default constructor for a class?

4 5037

When is an object in the mean to garbage collection?

3 4922

What are init(), start() methods and whey they are called?

2 7664


Un-Answered Questions { Java J2EE }

What is a persistence context?

136


Briefly describe the 2 ways in which the class property can be used.

148


What is actionservlet?

536


Why is the main method declared static?

561


What two classes are used to read data only?

605






what is the difference between websphere and weblogic?

467


What is null in java?

497


Why java is object oriented?

561


What is compiler and what its output.

610


What are the steps in the jdbc connection?

550


Which jdbc driver is the fastest driver?

533


you are to choose between two procedures,both of which copute the minimum value in an array of integers.one procedure returns the smallest integer if its array argument is empty. the other requires a nonempty array.which procedure should you choose and why?

2144


Why do we need ejb?

551


Can an integer be null java?

529


What is final?

582