765 + Mcqs in Java MCQ Questions for Placement Page 14 McqOptions

651.	The following example shows which XML Syntax rule, (1) < note date=" 12/11/2007"> (2) < to>Tove< /to> (3) < from>Jani< /from> (4) < /note>
A.	XML Attribute Values Must be Quoted
B.	All XML Elements Must Have a Closing Tag
C.	XML Tags are Case Sensitive
D.	XML Elements Must be Properly Nested
Answer» B. All XML Elements Must Have a Closing Tag

Discussion

652.	The following a) It is lightweight. b) It supports pluggable look and feel. c) It follows MVC (Model View Controller) architecture are the advantages of _____ .
A.	Swing
B.	AWT
C.	Both A & B
D.	None of the above
Answer» B. AWT

Discussion

653.	The flush() method of PrintStream class flushes any uncleared buffers in memory
A.	True
B.	False
Answer» B. False

Discussion

654.	The DatagramSocket and DatagramPacket classes are not used for connection-less socket programming.
A.	True
B.	False
Answer» C.

Discussion

655.	The clone() method is defined in?
A.	Abstract class
B.	Object Class
C.	ArrayList class
D.	None of the above
Answer» C. ArrayList class

Discussion

656.	The client in socket programming must know which informations?
A.	IPaddress of Server
B.	Port number
C.	Both A & B
D.	None of the above
Answer» D. None of the above

Discussion

657.	The CharArrayWriter class is not used to write data to multiple files
A.	True
B.	False
Answer» C.

Discussion

658.	The APPLET tag is used to start an applet from both an HTML document and from an applet viewer.
A.	True
B.	False
Answer» B. False

Discussion

659.	The ActionListener interface is not used for handling action events.
A.	True
B.	False
Answer» C.

Discussion

660.	The ActionListener interface is not used for handling action events
A.	True
B.	False
Answer» C.

Discussion

661.	The ACID properties does not describes the transaction management well.
A.	True
B.	False
Answer» C.

Discussion

662.	RMI allows an object to invoke methods on an object running in another JVM
A.	True
B.	False
Answer» B. False

Discussion

663.	ResultSetMetaData interface is useful because it provides methods to get metadata from the ResultSet object.
A.	True
B.	False
Answer» B. False

Discussion

664.	ResultSet object can be moved forward only and it is updatable.
A.	True
B.	False
Answer» C.

Discussion

665.	POJO means you are not forced to implement any interface or extend any class.
A.	True
B.	False
Answer» B. False

Discussion

666.	PatternSyntaxException Class Methods is an unchecked exception that indicates a syntax error in a regular expression pattern.
A.	True
B.	False
Answer» B. False

Discussion

667.	Package does not provide access protection
A.	True
B.	False
Answer» C.

Discussion

668.	Packages are used for distributing a collection of reusable classes, usually in a format known as Java Archive (JAR) file.
A.	True
B.	False
Answer» B. False

Discussion

669.	Nested interface must be public if it is declared outside the interface but it cannot have any access modifier if declared within the class.
A.	True
B.	False
Answer» C.

Discussion

670.	Mutual exclusive and inter-thread communication are which type of Synchorization?
A.	Thread Synchronization
B.	Process Synchronization
C.	Object Synchronization
D.	None of the above
Answer» B. Process Synchronization

Discussion

671.	Multiple inheritances is not supported in case of class but it is supported in case of interface.
A.	True
B.	False
Answer» B. False

Discussion

672.	Many threads at a time can run in a single process
A.	True
B.	False
Answer» C.

Discussion

673.	Local inner class can access non-final local variable
A.	True
B.	False
Answer» C.

Discussion

674.	JSP’s provide better facilities for separation of page code and template data by mean of Java beans, EJBs and custom tag libraries
A.	True
B.	False
Answer» B. False

Discussion

675.	JSPs eventually are compiled into Java servlets, you can do as much with JSPs as you can do with Java servlets.
A.	True
B.	False
Answer» B. False

Discussion

676.	JDBC technology-based drivers generally fit into how many categories?
A.	4
B.	3
C.	2
D.	5
Answer» B. 3

Discussion

677.	JDBC RowSet is the wrapper of ResultSet,It holds tabular data like ResultSet but it is easy and flexible to use.
A.	True
B.	False
Answer» B. False

Discussion

678.	java.applet defines how many interfaces?
A.	2
B.	3
C.	4
D.	5
Answer» C. 4

Discussion

679.	Java Virtual Machine is platform independent.
A.	True
B.	False
Answer» C.

Discussion

680.	Java Plug-in software is not responsible to manage the lifecycle of an Applet.
A.	True
B.	False
Answer» C.

Discussion

681.	Java application uses an output stream to read data from a source, it may be a file, an array, peripheral device or socket.
A.	True
B.	False
Answer» C.

Discussion

682.	Interceptor can change the flow of the application by returning the string.
A.	True
B.	False
Answer» B. False

Discussion

683.	In XML document comments are given as?
A.	< !-- --!>
B.	< !-- ?
C.	< /-- -->
D.	< ?-- ?
Answer» C. < /-- -->

Discussion

684.	In XML which internet languages are markup languages for handheld devices?
A.	WAP
B.	WML
C.	RSS
D.	Both A & B
Answer» E.

Discussion

685.	In which the access modifier means that the field can be accessed by all classes in your application?
A.	Private
B.	Public
C.	Package
D.	Protected
Answer» C. Package

Discussion

686.	In which technology Struts 2 provides various types of tags such as UI tags, Data tags, control tags etc. to ease the development of struts 2 application?
A.	Various Result support
B.	Integration Support
C.	Various Tag support
D.	Theme and Template support
Answer» D. Theme and Template support

Discussion

687.	In which state is the thread after invocation of start() method, but the thread Scheduler has not selected it to be the running thread?
A.	Running
B.	Runnable
C.	Terminated
D.	Non-Runnable
Answer» C. Terminated

Discussion

688.	In which configuration file is there a link between the View and Model components in the Web Client but you would not have to touch these settings for 99.99% of your projects?
A.	The struts-config.xml file
B.	The struts.xml file
C.	The web.xml file
D.	The struts.properties file
Answer» B. The struts.xml file

Discussion

689.	In which application can XML be used for marking up documents for specialized applications, such as e-commerce, scientific documents, Mathematical formula and e-books?
A.	Data exchange between computer systems
B.	Data storage
C.	Specialized publishing
D.	None of the above
Answer» D. None of the above

Discussion

690.	In the elements of Hibernate architecture is a factory of session and client of ConnectionProvider, It holds the second level cache (optional) of data is _____.
A.	Session
B.	SessionFactory
C.	Transaction
D.	ConnectionProvider
Answer» C. Transaction

Discussion

691.	In Servlet Terminology what provides runtime environment for JavaEE (j2ee) applications. It performs many operations that are given below: 1. Life Cycle Management 2. Multithreaded support 3. Object Pooling 4. Security etc.
A.	Server
B.	Webserver
C.	Container
D.	Application Server
Answer» D. Application Server

Discussion

692.	In order to transfer data between a database and an application written in the Java programming language, the JDBC API provides which of these methods?
A.	Methods on the ResultSet class for retrieving SQL SELECT results as Java types.
B.	Methods on the PreparedStatement class for sending Java types as SQL statement parameters.
C.	Methods on the CallableStatement class for retrieving SQL OUT parameters as Java types.
D.	All mentioned above
Answer» E.

Discussion

693.	In Method overriding a subclass in a different package can only override the non-final methods declared public or protected
A.	True
B.	False
Answer» B. False

Discussion

694.	In JSP page directive which attribute defines the MIME(Multipurpose Internet Mail Extension) type of the HTTP response?
A.	import
B.	Content Type
C.	Extends
D.	Info
Answer» C. Extends

Discussion

695.	In java, Method Overloading is possible by changing the return type of the method
A.	True
B.	False
Answer» C.

Discussion

696.	In InetAddress class which method returns the host name of the IP Address?
A.	public String getHostName()
B.	public String getHostAddress()
C.	public static InetAddress getLocalHost()
D.	None of the above
Answer» B. public String getHostAddress()

Discussion

697.	In HTTP Request what asks for the loopback of the request message, for testing or for troubleshooting?
A.	PUT
B.	OPTIONS
C.	DELETE
D.	TRACE
Answer» E.

Discussion

698.	In how many states Threads can be explained ?
A.	4
B.	5
C.	3
D.	2
Answer» C. 3

Discussion

699.	In Graphics class which method is used to draws a rectangle with the specified width and height?
A.	public void drawRect(int x, int y, int width, int height)
B.	public abstract void fillRect(int x, int y, int width, int height)
C.	public abstract void drawLine(int x1, int y1, int x2, int y2)
D.	public abstract void drawOval(int x, int y, int width, int height)
Answer» B. public abstract void fillRect(int x, int y, int width, int height)

Discussion

700.	In case of Table per Concrete class, there will be three tables in the database having no relations to each other. Which are the ways to map the table?
A.	By union-subclass element
B.	By self-creating the table for each class
C.	Both A & B
D.	None of the above
Answer» D. None of the above

Discussion

Explore topic-wise MCQs in Placement Tests.

The following example shows which XML Syntax rule, (1) < note date=" 12/11/2007"> (2) < to>Tove< /to> (3) < from>Jani< /from> (4) < /note>

The following a) It is lightweight. b) It supports pluggable look and feel. c) It follows MVC (Model View Controller) architecture are the advantages of _____ .

The flush() method of PrintStream class flushes any uncleared buffers in memory

The DatagramSocket and DatagramPacket classes are not used for connection-less socket programming.

The clone() method is defined in?

The client in socket programming must know which informations?

The CharArrayWriter class is not used to write data to multiple files

The APPLET tag is used to start an applet from both an HTML document and from an applet viewer.

The ActionListener interface is not used for handling action events.

The ActionListener interface is not used for handling action events

The ACID properties does not describes the transaction management well.

RMI allows an object to invoke methods on an object running in another JVM

ResultSetMetaData interface is useful because it provides methods to get metadata from the ResultSet object.

ResultSet object can be moved forward only and it is updatable.

POJO means you are not forced to implement any interface or extend any class.

PatternSyntaxException Class Methods is an unchecked exception that indicates a syntax error in a regular expression pattern.

Package does not provide access protection

Packages are used for distributing a collection of reusable classes, usually in a format known as Java Archive (JAR) file.

Nested interface must be public if it is declared outside the interface but it cannot have any access modifier if declared within the class.

Mutual exclusive and inter-thread communication are which type of Synchorization?

Multiple inheritances is not supported in case of class but it is supported in case of interface.

Many threads at a time can run in a single process

Local inner class can access non-final local variable

JSP’s provide better facilities for separation of page code and template data by mean of Java beans, EJBs and custom tag libraries

JSPs eventually are compiled into Java servlets, you can do as much with JSPs as you can do with Java servlets.

JDBC technology-based drivers generally fit into how many categories?

JDBC RowSet is the wrapper of ResultSet,It holds tabular data like ResultSet but it is easy and flexible to use.

java.applet defines how many interfaces?

Java Virtual Machine is platform independent.

Java Plug-in software is not responsible to manage the lifecycle of an Applet.

Java application uses an output stream to read data from a source, it may be a file, an array, peripheral device or socket.

Interceptor can change the flow of the application by returning the string.

In XML document comments are given as?

In XML which internet languages are markup languages for handheld devices?

In which the access modifier means that the field can be accessed by all classes in your application?

In which technology Struts 2 provides various types of tags such as UI tags, Data tags, control tags etc. to ease the development of struts 2 application?

In which state is the thread after invocation of start() method, but the thread Scheduler has not selected it to be the running thread?

In which configuration file is there a link between the View and Model components in the Web Client but you would not have to touch these settings for 99.99% of your projects?

In which application can XML be used for marking up documents for specialized applications, such as e-commerce, scientific documents, Mathematical formula and e-books?

In the elements of Hibernate architecture is a factory of session and client of ConnectionProvider, It holds the second level cache (optional) of data is _____.

In Servlet Terminology what provides runtime environment for JavaEE (j2ee) applications. It performs many operations that are given below: 1. Life Cycle Management 2. Multithreaded support 3. Object Pooling 4. Security etc.

In order to transfer data between a database and an application written in the Java programming language, the JDBC API provides which of these methods?

In Method overriding a subclass in a different package can only override the non-final methods declared public or protected

In JSP page directive which attribute defines the MIME(Multipurpose Internet Mail Extension) type of the HTTP response?

In java, Method Overloading is possible by changing the return type of the method

In InetAddress class which method returns the host name of the IP Address?

In HTTP Request what asks for the loopback of the request message, for testing or for troubleshooting?

In how many states Threads can be explained ?

In Graphics class which method is used to draws a rectangle with the specified width and height?

In case of Table per Concrete class, there will be three tables in the database having no relations to each other. Which are the ways to map the table?