The keywords reserved but not used in the initial version of Java re:
Synchronized
Boolean
union
goto
Correct Answer :
D. goto
Related Questions
In evaluating a logical expression of type 'Boolean expression 1&& Boolean expression 2', both the Boolean expressions are not always evaluated.
True
False
Submit button always fires doPost(...)
True
False
Session bean
Represents a single client inside the application server
Can not be shared
Is not persistent
Satisfies all of the above conditions
Which of the following command lines options generates documentation for all classes and methods?
-protected
-public
-private
-encoding
class.forName(...) creates an instance of java ODBC driver
True
False
Every method of a final in class is implicitly final.
True
False
Which of the following methods can be used to remove a component from the display?
remove()
desappear()
hide()
move()
A JSP file can be stored_________________
With the extension .jsp in servlets folder of the jws
With the extension .html in public_html folder of the jws
With the extension .jsp in public_html folder of the jws
None of the above.
forName() is a static factory method
True
False
executeUpdate(------------) returns ___________
Nothing
Returns a ResultSet object
Returns an integer value to show the no. of updated rows
None of the above.
EJBs can be of the following type(s)
None of the above
Entity Bean
Session Bean
Message-driven bean
All of the above
It is perfectly legal to assign a subclass object to a supper class reference.
True
False
Message-Driven beans act as a listener for the Java Message Service API, processing messages synchronously
True
False
Which key word can protect a class in package from accessibility by the classes outside the package?
private
protected
final
don't use any keyword at all(make it default)
The name of a Java program file must match the name of the class with the extension Java.
True
False
Servlet has ___________
init method
doGet(------) method
All of the above methods.
An EJB is a server-side component that encapsulates the business logic of an application
True
False
In RMI we invoke client method from remote server
True
False
It is an error if a class with one or more abstract methods is not explicitly declared abstract.
True
False
Which of the following are not keywords?
NULL
Implements
Protected
None of the above
The methods wait() and noify() are defined in
java.lang.Thread
java.lang.Runnable
java.lang.Object
java.lang.ThreadGroup
A Java monitor must either extend thread class or implement Runnable interface.
True
False
DataInput is
An abstract class defined is java.io.
A class we can use to read primitive data types.
An interface that defines methods to open files.
An interface that defines methods to read primitive data types.
Frames and applets cannot be used together in the same program.
True
False
The expression (x == y && a<b) is true If either x == y is true or a<b is true.
True
False
A final class may not have any abstract method.
True
False
A constructor must always invoke its supper class constructor in its first statement.
True
False
Throwing an exception always causes program termination.
True
False
If a=10 and b= 15, then the statement x =(a>b)?a:b; assigns the value 15 to x.
True
False
In a single Servlet class we can use____________
doGet(...) method only
doPost(...) method only
doGet(...) method and doPost(...) method both at a time.
Either 'a' or 'b'