• Java programs are

(a) Faster than others
(b) Platform independent
(c) Not reusable
(d) Not scalable

Answer

• Java has its origin in

(a) C programming language
(b) PERRL
(c) COBOL
(d) Oak programming language

Answer

• Which one of the following is true for Java

(a) Java is object oriented and interpreted
(b) Java is efficient and faster than C
(c) Java is the choice of everyone.
(d) Java is not robust.

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• The command javac is used to

(a) debug a java program
(b) compile a java program
(c) interpret a java program
(d) execute a java program

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• Java servlets are an efficient and powerful solution for
  creating ………….. for the web.

(a) Dynamic content
(b) Static content
(c) Hardware
(d) Both a and b

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• Filters were officially introduced in the Servlet ___________ specification.

(a) 2.1
(b) 2.3
(c) 2.2
(d) 2.4

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• Which is the root class of all AWT events

(a) java.awt.ActionEvent
(b) java.awt.AWTEvent
(c) java.awt.event.AWTEvent
(d) java.awt.event.Event

Answer

• OOP features are

i) Increasing productivity
ii) Reusability
iii) Decreasing maintenance cost
iv) High vulnerability
(a) 1,2 & 4
(b) 1,2 & 3
(c) 1, 2 & 4
(d) none of the above

Answer

• break statement is used to

i) get out of method
ii) end aprogram
iii) get out of a loop
iv) get out of the system

(a) 1 & 2
(b) 1,2 & 3
(c) 1 & 3
(d) 3

Answer

• Native – protocol pure Java converts ______ into the ______ used by DBMSs directly.

(a) JDBC calls, network protocol
(b) ODBC class, network protocol
(c) ODBC class, user call
(d) JDBC calls, user call

Answer

• The JDBC-ODBC bridge allows ……….. to be used as ………..

(a) JDBC drivers, ODBC drivers
(b) Drivers, Application
(c) ODBC drivers, JDBC drivers
(d) Application, drivers

Answer

• Which of the following is true about Java.

(a) Java does not support overloading.
(b) Java has replaced the destructor function of C++
(c) There are no header files in Java.
(d) All of the above.

Answer

• _______ are not machine instructions and therefore, Java interpreter generates machine code that can be directly executed by the machine that is running the Java program.

(a) Compiled Instructions
(b) Compiled code
(c) byte code
(d) Java mid code

Answer

• The command javac

(a) Converts a java program into binary code
(b) Converts a java program into bytecode
(c) Converts a java program into machine language
(d) None of the above.

Answer

• Which of the following is not the java primitive type

(a) Byte
(b) Float
(c) Character
(d) Long double

Answer

• Command to execute compiled java program is

(a) java
(b) javac
(c) run
(d) javaw

Answer

• Java Servlet

i) is key component of server side java development
ii) is a small pluggable extension to a server that enhances functionality
iii) runs only in Windows Operating System
iv) allows developers to customize any java enabled server
(a) i, ii & iii are ture
(b) i, iii & iv are true
(c) ii, iii & iv are true
(d) i, ii & iv are true

Answer

• Inner classes are

(a) anonymous classes
(b) nested classes
(c) sub classes
(d) derived classes

Answer

• How many times does the following code segment execute/

int x=1, y=10, z=1;
do{
  y–; 
  x++; 
  y-=2; 
  y=z; 
  z++
} while (y>1 && z<10);

(a) 1
(b) 10
(c) 5
(d) infinite

Answer

• State weather the following statement is true or false for EJB.

1. EJB exists in the middle-tier
2. EJB specifies an execution environment
3. EJB supports transaction processing
(a) 1-true, 2. true, 3. true
(b) 1- true, 2. false, 3. true
(c) 1- false, 2- false, 3- false
(d) 1-true, 2-true, 3-false

Answer

• All java classes are derived from

(a) java.lang.Class
(b) java.util.Name
(c) java.lang.Object
(d) java.awt.Window

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• The jdb is used to

(a) Create a jar archive
(b) Debug a java program
(c) Create C header file
(d) Generate java documentation

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• What would happen if “String[]args” is not included as argument
  in the main method.

(a) No error
(b) Compilation error
(c) Program won’t run
(d) Program exit

Answer

• For execution of DELETE SQL query in JDBC,______ method must be used.

(a) executeQuery()
(b) executeDeleteQuery()
(c) executeUpdate()
(d) executeDelete()

Answer

• Which method will a web browser call on a new applet?

(a) main method
(b) destroy method
(c) execute method
(d) init method

Answer

• Which of the following is not mandatory in variable declaration?

(a) a semicolon
(b) an identifier
(c) an assignment
(d) a data type

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• When a program class implements an interface, it must
  provide behavior for

(a) two methods defined in that interface
(b) any methods in a class
(c) only certain methods in that interface
(d) all methods defined in that interface

Answer

• In order to run JSP ……………….. is required.

(a) Mail Server
(b) Applet viewer
(c) Java Web Server
(d) Database connection

Answer

• State true of false.

i) AWT is an extended version of swing
ii) Paint( ) of Applet class cannot be overridden
(a) i-false, ii-false
(b) i-false,ii-true
(c) i-true, ii-false
(d) i-true, ii-true

Answer

• Prepared Statement object in JDBC used to execute _____ queries.

(a) Executable
(b) Simple
(c) High level
(d) Parameterized

Answer

• In Java variables, if first increment of the variable takes
  place and then the assignment occurs. This operation is also called ______.

(a) pre increment
(b) post increment
(c) incrementation
(d) pre incrementation

Answer

• When the operators are having the same priority, they are
  evaluated from _______ __________ in the order they appear in the expression.

(a) right to left
(b) left to right
(c) any of the order
(d) depends on compiler

Answer

• In java, ________ can only test for equality, where as ________ can evaluate any type of the
  Boolean expression.

(a) switch, if
(b) if, switch
(c) if, break
(d) continue, if

Answer

• The ______ looks only for a match between the value of the expression and one of its
  case constants.

(a) if
(b) match
(c) switch
(d) None of the above

Answer

• System.in.read() is being used, the program must specify the _______ clause.

(a) throws.java.out.IOException
(b) throws.java.in.IOException
(c) throws.java.io.IOException
(d) throws.java.io.InException

Answer

• By using____________ you can force immediate termination of a loop,
  by passing the conditional expression and any remaining code in the
  body of the
  loop.

(a) Break
(b) Continue
(c) Terminate
(d) Loop Close

Answer

• The out object is an object encapsulated inside the___________
  class, and represents the standard output device.

(a) standard
(b) local
(c) globlal
(d) system

Answer

• The third type of comment is used by a tool called _______ for
  automatic generation of documentation.

(a) Java commenting
(b) Java generator
(c) Java doc
(d) Java loc

Answer

• In the second type the information written in java after // is
  ignored by the ______.

(a) Interpreter
(b) Compiler
(c) Programmer
(d) All of the above

Answer

• The compiled java program can run on any ______ plateform having Java Virtual
  Machine (JVM) installed on it.

(a) program
(b) java
(c) hardware
(d) non java

Answer

• Preparedstatement Object in JDBC is used to execute __________ queries.

(a) executable
(b) simple
(c) high level
(d) parameterized

Answer

• In JDBC _________imports all Java classes concerned with
  database connectivity.

(a) javax.sql.*
(b) java.mysql.*
(c) java.sql.*
(d) com.*

Answer

• MS-SQL stores data in a …………………… file format.

(a) .DAT
(b) .MDB
(c) .MSSQL
(d) .OBJ

Answer

• Ingres is a _______.

(a) Socket
(b) Compiler
(c) Database
(d) Web server

Answer