Question 1

Which of the following is correct syntax for an Abstract class ?

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abstract double area() { }
abstract double area()
abstract double area();
abstract double area(); { }

Answer

Correct Option: C

Question 2

Which file contains the web application that can be deployed on the any servlet/jsp container?

technology programming languages

.jar
.war
.ear
.zip

Answer

Correct Option: B

Question 3

What are the two parts of a value of type double?

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significant digits
length
exponent
Both a & b

Answer

Correct Option: D

Question 4

A method declared as final

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Can be overridden
Cannot be overridden
Can be inherited
Cannot be inherited

Answer

Correct Option: B

Question 5

What are the different ways for session tracking?

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Cookies
URL rewriting
HttpSession
All the above

Answer

Correct Option: D

Question 6

Which of the following may have duplicate elements?

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Collection
List
Map
Both a & b

Answer

Correct Option: D

Question 7

How to create a serial class, Extend _____

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%SerialObject
%RegisteredObject
%Persistent
%Transient

Answer

Correct Option: A

Question 8

select the open commands available in cache

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Oref()
Open()
Openid()
New()

Answer

Correct Option: B,C

Question 9

if class D is inheriting Classes A,B and C and all of them have a property p, then in class D while accessing propert p which super class would be used, Declaration of class :- Class D Extends A,B,C {}

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A
B
C
D
%system

Answer

Correct Option: C

Question 10

what are %classes

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System
User defined
parametrized
Hidden

Answer

Correct Option: A

Question 11

How to create a transient class, Extend _____

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%SerialObject
%RegisteredObject
%Persistent
%Transient

Answer

Correct Option: B

Question 12

Is multiple inheritance allowed?

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True
False

Answer

Correct Option: B

Question 13

select the option for- syntax for writing a class parameter

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w var1
w this.var1
w ..var1
w ..#var1
w (classname).var1

Answer

Correct Option: D

Question 14

Which of the following are class keywords?

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Clientdatatype
Abstract
super
classtype
final

Answer

Correct Option: A,B,C,D,E

Question 15

select all the valid values for collation

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sqlupper
sqlvarchar
exact
mvr
truncate

Answer

Correct Option: A,C,D

Question 16

select the correct options-

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Data type classes cannot be instantiated
Data type classes can contain properties
Data type classes automatically includes methods for validation and translation
Data type classes cannot be inherited

Answer

Correct Option: A,C

Question 17

select the correct options for - how are class keywords handled in multiple inheritance ?

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keywords are not inherted
keywords from first superclass are inherited
keywords from last superclass are inherited
keywords from all superclasses are inherited

Answer

Correct Option: B

Question 18

Which is the correct definition of welcome files in web.xml?

technology programming languages

index.jsp
index.jsp
index.jsp
index.jsp

Answer

Correct Option: B

Question 19

Which is the correct definition of welcome files in web.xml?

technology programming languages

index.jsp
index.jsp
index.jsp
index.jsp

Answer

Correct Option: B

Description: programming languages Online Quiz - 186
Number of Questions: 19
Created by: Aliensbrain Bot
Tags: programming languages

programming languages Online Quiz - 186

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