MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 765 Mcqs, each offering curated multiple-choice questions to sharpen your Placement Tests knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
By interface, we cannot support the functionality of multiple inheritances. |
| A. | True |
| B. | False |
| Answer» C. | |
| 352. |
Which method of DataInputStream class reads a line from the file and returns it as a string? |
| A. | WriteInt() |
| B. | readLine() |
| C. | readInt() |
| D. | writeDouble() |
| Answer» C. readInt() | |
| 353. |
The Java Virtual Machine is the cornerstone of the Java platform. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 354. |
Which class can handle any type of request so that it is protocol-independent? |
| A. | GenericServlet |
| B. | HttpServlet |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. HttpServlet | |
| 355. |
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. | |
| 356. |
What is used to execute parameterized query? |
| A. | Statement interface |
| B. | PreparedStatement interface |
| C. | ResultSet interface |
| D. | None of the above |
| Answer» C. ResultSet interface | |
| 357. |
Which interface must be implemented by the Action class to store the information in the session scope? |
| A. | SessionAware Interface |
| B. | ServletContextAware Interface |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. ServletContextAware Interface | |
| 358. |
AWT has more powerful components like tables, lists, scroll panes, color chooser, tabbed pane etc. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 359. |
Filtered streams are simply wrappers around underlying input or output streams that transparently provide some extended level of functionality. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 360. |
Find the correct syntax of the declaration which defines the XML Version? |
| A. | < ?xml version= "1.0" ? > |
| B. | < xml version="1.0"/ > |
| C. | < ?xml version="1.0" / > |
| D. | None of the above |
| Answer» B. < xml version="1.0"/ > | |
| 361. |
Which class members can be accessed from the classes in the same package as well as classes in other Packages that are subclasses of the declaring class? |
| A. | private |
| B. | Public |
| C. | Protected |
| D. | None of the above |
| Answer» D. None of the above | |
| 362. |
Which method of object class can clone an object? |
| A. | copy() |
| B. | Objectcopy() |
| C. | Objectclone() |
| D. | Clone() |
| Answer» D. Clone() | |
| 363. |
ResultSet object can be moved forward only and it is updatable. |
| A. | True |
| B. | False |
| Answer» C. | |
| 364. |
Which is a technique in Java in which a class can have any number of constructors that differ in parameter lists? |
| A. | Constructor overloading |
| B. | Method overloading |
| C. | Operator overloading |
| D. | None of the above |
| Answer» B. Method overloading | |
| 365. |
JDBC technology-based drivers generally fit into how many categories? |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 5 |
| Answer» B. 3 | |
| 366. |
Which packages represent interfaces and classes for servlet API? |
| A. | javax.servlet |
| B. | javax.servlet.http |
| C. | Both A & B |
| D. | None of the above |
| Answer» D. None of the above | |
| 367. |
Which JDBC type represents a 64-bit signed integer value between -9223372036854775808 and 9223372036854775807? |
| A. | SMALLINT |
| B. | BIGINT |
| C. | TINYINT |
| D. | INTEGER |
| Answer» C. TINYINT | |
| 368. |
When an applet is terminated which of the following sequence of methods calls take place? |
| A. | stop(),paint(),destroy() |
| B. | destroy(),stop(),paint() |
| C. | destroy(),stop() |
| D. | stop(),destroy() |
| Answer» E. | |
| 369. |
Which method is called only once during the run time of your applet? |
| A. | stop() |
| B. | paint() |
| C. | init() |
| D. | destroy() |
| Answer» D. destroy() | |
| 370. |
Which is a component in AWT that can contain another components like buttons, textfields, labels etc.? |
| A. | Window |
| B. | Container |
| C. | Panel |
| D. | Frame |
| Answer» C. Panel | |
| 371. |
Java Virtual Machine is platform independent. |
| A. | True |
| B. | False |
| Answer» C. | |
| 372. |
Which are subclasses of FilterInputStream and FilterOutputStream? |
| A. | PipedInputStream |
| B. | PipedOutputStream |
| C. | DataInputStream |
| D. | DataOutputStream |
| E. | Both C & D |
| Answer» F. | |
| 373. |
The Object class is not a parent class of all the classes in java by default. |
| A. | True |
| B. | False |
| Answer» C. | |
| 374. |
Which method is used to send the same request and response objects to another servlet in RequestDispacher ? |
| A. | forward() |
| B. | sendRedirect() |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. sendRedirect() | |
| 375. |
Which EJB container must provide an implementation of Java Naming and Directory Interface (JNDI) API to provide naming services for EJB clients and components? |
| A. | Transaction support |
| B. | Persistence support |
| C. | Naming support |
| D. | All mentioned above |
| Answer» D. All mentioned above | |
| 376. |
Web server is used for loading the init() method of servlet. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 377. |
Servlets handle multiple simultaneous requests by using threads. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 378. |
RMI is a server-side component; It is not required to be deployed on the server. |
| A. | True |
| B. | False |
| Answer» C. | |
| 379. |
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 | |
| 380. |
How many jsp implicit objects are there and these objects are created by the web container that are available to all the jsp pages? |
| A. | 8 |
| B. | 9 |
| C. | 10 |
| D. | 7 |
| Answer» C. 10 | |
| 381. |
The ResultSet.next method is used to move to the next row of the ResultSet, making it the current row. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 382. |
Which provides accessibility to classes and interface? |
| A. | import |
| B. | Static import |
| C. | All the above |
| D. | None of the above |
| Answer» B. Static import | |
| 383. |
Which is used to call the stored procedures and functions? |
| A. | CallableStatement Interface |
| B. | PreparedStatement Interface |
| C. | All the above |
| D. | None of the above |
| Answer» B. PreparedStatement Interface | |
| 384. |
Which interfaces provide methods for batch processing in JDBC? |
| A. | java.sql.Statement |
| B. | java.sql.PreparedStatement |
| C. | All the above |
| D. | None of the above |
| Answer» D. None of the above | |
| 385. |
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 | |
| 386. |
A session bean represents a multiple clients inside the Application Server. |
| A. | True |
| B. | False |
| Answer» C. | |
| 387. |
What are the exceptions which have to be handled in a RMI client program? |
| A. | RemoteException |
| B. | NotBoundException |
| C. | MalFormedURLException |
| D. | All mentioned above |
| Answer» E. | |
| 388. |
Which kind of driver converts JDBC calls into calls on the client API for Oracle, Sybase, Informix, IBM DB2, or other DBMS? |
| A. | JDBC-ODBC bridge plus ODBC driver |
| B. | Native-API partly-Java driver |
| C. | JDBC-Net pure Java driver |
| D. | Native-protocol pure Java driver |
| Answer» C. JDBC-Net pure Java driver | |
| 389. |
RMI uses a layered architecture; each of the layers could be enhanced or replaced without affecting the rest of the system. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 390. |
Which statement provides an easy way to dispatch execution to different parts of your code based on the value of an expression? |
| A. | If |
| B. | Switch |
| C. | Nested-if |
| D. | if-else-if |
| Answer» C. Nested-if | |
| 391. |
Which field of StreamTokenizer if the token is a word, this filed contains the word that can be used in programming? |
| A. | String sval |
| B. | double nval |
| C. | int ttype |
| D. | static final int TT_WORD |
| Answer» C. int ttype | |
| 392. |
Classes in the same package cannot access each other's package-access members. |
| A. | True |
| B. | False |
| Answer» C. | |
| 393. |
Which is used to separate the hierarchy of the class while declaring an import statement? |
| A. | Package |
| B. | Applet |
| C. | Browser |
| D. | All of the above |
| Answer» B. Applet | |
| 394. |
Which method of string class in java is used to convert the boolean into String? |
| A. | public static String valueOf(double I) |
| B. | public static String valueOf(boolean I) |
| C. | public boolean equals(Object anObject) |
| D. | public static String valueOf(Object obj) |
| Answer» B. public static String valueOf(boolean I) | |
| 395. |
We need to write the controller code self, If we change the controller code, we need to recompile the class and redeploy the application this is a disadvantage of which MVC Architecture? |
| A. | MVC 1 Architecture |
| B. | MVC 2 Architecture |
| C. | All of the above |
| D. | None of the above |
| Answer» C. All of the above | |
| 396. |
In RMI, the objects are passed by _____. |
| A. | Value |
| B. | Reference |
| C. | Value and Reference |
| D. | None of the above |
| Answer» B. Reference | |
| 397. |
Struts combines which of these in to a unified Framework? |
| A. | Java Servlets |
| B. | Java Server pages |
| C. | Custom tags and Message Resources |
| D. | All mentioned above |
| Answer» E. | |
| 398. |
The performance of the application will be faster if you use PreparedStatement interface because query is compiled only once. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 399. |
EJB is a specification for J2EE server, not a product; Java beans may be a graphical component in IDE. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 400. |
Which class is used for this Processing Method processActionEvent( )? |
| A. | Button,List,MenuItem |
| B. | Button,Checkbox,Choice |
| C. | Scrollbar,Component,Button |
| D. | None of the above |
| Answer» B. Button,Checkbox,Choice | |