Java & Web Development Assessment Exam

1. Which one is a valid declaration of a boolean?

Boolean b1 = 1;

Boolean b2 = ‘false’;

Boolean b3 = false;

Boolean b4 = ‘true’

2. Which of these methods is used to know when was the URL last modified?

LastModified()

GetLastModified()

GetlastModified()()

3. Which of the following are the features of jQuery?

Efficient query method for finding the set of document elements

Expressive syntax for referring to elements in the document

Useful set of methods for manipulating selected elements

All of the mentioned

4. What is the output of this program?

0

1

True

False

5. Which of these methods is used to know the type of content used in the URL?

ContentType()

GetContentType()

6. Which of these package is used for graphical user interface?

Java.applet

Java.awt

Java.awt.image

Java.io

7. Which attribute is used to name an html element uniquely?

Class

Id

Name

All of above

8. Which of these methods is used to know host of an URL?

Host()

GetHost()

Gethost()

9. Which of these standard collection classes implements a dynamic array?

AbstractList

LinkedList

ArrayList

AbstractSet

10. Which of these is a method of ObjectOutput interface used to finalize the output state so that any buffers are cleared?

Clear()

Flush()

Fflush()

Close()

11. Which of these classes implements Set interface?

ArrayList

HashSet

LinkedList

DynamicList

12. Which of these standard collection classes implements a linked list data structure?

AbstractList

LinkedList

HashSet

AbstractSet

13. State True or False. A windows application creation or a web application creation is mandatory in order to test a web service.

True

False

14. Which of these method of HashSet class is used to add elements to its object?

Add()

AddFirst()

Insert()

15. Which of these package is used for invoking a method remotely?

Java.rmi

Java.awt

Java.util

Java.applet

16. Which of these is a process of writing the state of an object to a byte stream?

Serialization

Externalization

File Filtering

All of the mentioned

17. Which of these method of ArrayList class is used to obtain present size of an object?

Size()

Length()

Index()

Capacity()

18. What is the output of this program?

0

1

True

False

19. What is the output of this program?

25

24

32

33

20. Which of these class can generate an array which can increase and decrease in size automatically?

ArrayList()

DynamicList()

LinkedList()

DynamicList()

21. What is a web service?

A standard way of integrating web-based applications

One type of service can be part of a Service Oriented Architecture

Programmable XML-based service

All of the above

22. Which of these values can a boolean variable contain?

True & False

0 & 1

Any integer value

Both a & b

23. What are the web service platform elements?

SOAP, UDDI, XML

HTTP, WSDL

UDDI, XML, SOAP

SOAP, UDDI, WSDL

24. Which of these keywords are used to define an abstract class?

Abst

Abstract

Abstract class

25. The basic purpose of the toLocaleString() is to

Return a localised object representation

Return a parsed string

Return a local time in the string format

Return a localized string representation of the object

26. What is the output of this program?

16.34

16.566666644

16.46666666666667

16.46666666666666

27. What is new about web services?

XML - a common language for describing RMC

XML - a common language for describing web services

XML - a common language for describing web service directories

All of the above

28. What is the output of this program?

162

65 97

67 95

66 98

29. Which of these type parameters is used for a generic methods to return and accept any type of object?

K

N

T

V

30. Which of these methods can be used to delete the last element in a LinkedList object?

Remove()

Delete()

RemoveLast()

DeleteLast()

31. If a class inheriting an abstract class does not define all of its function then it will be known as?

Abstract

A simple class

Static class

None of the mentioned

32. Which of the following is not a new feature of HTML5?

Use canvas tag element for 2D drawing.

Use video tag elements for media playback.

Use audio tag elements for media playback.

Support for local storage

All of the above are new features.

33. Which of these package is used for analyzing code during run-time?

Java.applet

Java.awt

Java.io

Java.lang.reflect

34. What is the range of data type byte in Java?

-128 to 127

-32768 to 32767

-2147483648 to 2147483647

None of the mentioned

35. What is the output of this program?

I i i i i

0 1 2 3 4

I j k l m

None of the mentioned

36. Which of these interface extends DataOutput interface?

Serializable

Externalization

ObjectOutput

ObjectInput

37. Which of these method is used to add an element to the start of a LinkedList object?

Add()

First()

AddFirst()

38. Which of the following is used to locate and describe web services?

SOAP

Web page

WSDL

UDDI

39. What is correct behavior of preventDefault() function:

Prevent the drag event

Prevent the drop event

Prevent the browser default handling of the data

All of the above

40. A linkage of series of prototype objects is called as :

Prototype stack

Prototype chain

Prototype class

Prototypes

41. Which of these packages contains abstract keyword?

Java.lang

Java.util

Java.io

Java.system

42. Which of these is not a correct statement?

Every class containing abstract method must be declared abstract.

Abstract class defines only the structure of the class not its implementation.

Abstract class can be initiated by new operator.

Abstract class can be inherited.

43. Which data type value is returned by all transcendental math functions?

Int

Float

Double

Long

44. Which of the following are legal lines of Java code?

int w = (int)888.8;
byte x = (byte)100L;
long y = (byte)100;
byte z = (byte)100L;

1 and 2

2 and 3

3 and 4

All statements are correct.

45. Which of the following is not form controls elements in HTML5?

Url

Search

Email

Money

Time

46. What is the output of this program?

301.5656

301

301.56

301.56560000

47. What are generic methods?

Generic methods are the methods defined in a generic class.

Generic methods are the methods that extend generic class’s methods.

Generic methods are methods that introduce their own type parameters.

Generic methods are methods that take void parameters.

48. Which of the following is used to locate and describe web services?

SOAP

Web Page

WSDL

UDDI

49. Web services attempts to describe architecture based on

Representational State Transfer (REST)

Remote Procedure Calls

Reusable Application Components

None of the above

50. What is the range of data type short in Java?

-128 to 127

-32768 to 32767

-2147483648 to 2147483647

None of the mentioned

51. Which of these exception is thrown by URL class's constructors?

URLNotFound

URLSourceNotFound

MalformedURLException

URLNotFoundException

52. What does URL stands for?

Uniform Resource Locator

Uniform Resource Latch

Universal Resource Locator

Universal Resource Latch

53. To determine whether one object is the prototype of (or is part of the prototype chain of) another object, one should use the

Equals() method

IsPrototypeOf() method

=== operator

None of the mentioned

54. Which of these method is used to reduce the capacity of an ArrayList object?

Trim()

TrimSize()

TrimTosize()

TrimToSize()

55. Why SOAP is used as a protocol for accessing a web service?

SOAP is platform and language independent, allows to get around firewalls

SOAP is based on HTML

SOAP is designed to communicate through LAN

All of the above

56. Which of these package is used for handling security related issues in a program?

Java.security

Java.lang.security

Java.awt.image

Java.io.security

57. The basic difference between JavaScript and Java is

There is no difference

Functions are considered as fields

Variables are specific

Functions are values, and there is no hard distinction between methods and fields

58. Which of these type parameters is used for a generic methods to return and accept a number?

K

N

T

V

59. Which of these tranfer protocol must be used so that URL can be accessed by URLConnection class object?

Http

Https

Any Protocol can be used

None of the mentioned

60. The unordered collection of properties, each of which has a name and a value is called

String

Object

Serialized Object

All of the above

61. An expression involving byte, int, and literal numbers is promoted to which of these?

Int

Long

Byte

Float

62. Which of these literals can be contained in a data type float variable?

1.7e-308

3.4e-038

1.7e+308

3.4e-050

63. What is the output of this program?

66

67

65

64

64. Which of these class allows us to get real time data about private and protected member of a class?

Java.io

GetInformation

ReflectPermission

MembersPermission

65. Web services are the amalgamation of

XML and SOAP

XML and HTTP

WSDL and UDDI

Eb-XML and WSDL

66. Which of these coding types is used for data type characters in Java?

ASCII

ISO-LATIN-1

UNICODE

None of the mentioned

67. Which of the following is not true about HTML5?

Better error handling

Reduce the need for external plug-in (like Flash)

Uses more markups to replace scripting language

All of the above are correct.

Only options (A) and (C) are correct.

68. Which of the following is a single global function defined in the jQuery library?

JQuery()

$()

Queryanalysis()

None of the mentioned

69. What is the numerical range of a char in Java?

-128 to 127

0 to 256

0 to 32767

0 to 65535

70. Which of the following three kinds of data that web services have?

Shared data, processed data, form data

Shared data, pre-session data and temporary data

Shared data, post-session data and temporary data

Shared data, pre-session data and permanent data

71. Which of these class is used to access actual bits or content information of a URL?

URL

URLDecoder

URLConnection

All of the mentioned

72. What is the output of this program?

38 43

39 44

295 300

295.04 300

73. Which of these data member of HttpResponse class is used to store the response from a http server?

Status

Address

StatusResponse

StatusCode

74. Which of these is method of ObjectOutput interface used to write the object to input or outputstream as required?

Write()

StreamWrite()

WriteObject()

75. Which of these class is used to access actual bits or content information of a URL?

URL

URLDecoder

URLConnection

All of the mentioned

76. The object has three object attributes namely

Class, parameters, object’s extensible flag

Prototype, class, objects’ parameters

Prototype, class, object’s extensible flag

Native object, Classes and Interfacces and Object’s extensible flag

77. Which of the following is incorrect statement regarding the use of generics and parameterized types in Java?

Generics provide type safety by shifting more type checking responsibilities to the compiler.

Generics and parameterized types eliminate the need for down casts when using Java Collections.

All of the mentioned

78. Which of these is not abstract?

Thread

AbstractList

List

None of the Mentioned

79. Which of these methods is used to know the full URL of an URL object?

FullHost()

GetHost()

ExternalForm()

ToExternalForm()

80. The purpose of extensible attribute is to

Make all of the own properties of that object nonconfigurable

To configure and bring a writable property

“lock down” objects into a known state and prevent outside tampering

All of the mentioned

81. Which of these package is used for all the text related modifications?

Java.text

Java.awt

Java.lang.text

Java.text.mofify

82. Which of these is an correct way of defining generic method?

Name(T1, T2, …, Tn) { /* … */ }

Public name { /* … */ }

Class name[T1, T2, ..., Tn] { /* … */ }

Name{T1, T2, …, Tn} { /* … */ }

83. Which of these method can be used to increase the capacity of ArrayList object manually?

Capacity()

IncreaseCapacity()

Increasecapacity()

EnsureCapacity()

84. Which of the following is used to perform remote procedure calls in web services?

HTTP-RPC

XML-HTTP

XML-RPC

SOAP-XML

85. Which of these methods can be used to obtain a static array from an ArrayList object?

Array()

CovertArray()

ToArray()

CovertoArray()

86. Which of these occupy first 0 to 127 in Unicode character set used for characters in Java?

ASCII

ISO-LATIN-1

None of the mentioned

Both a & b

87. Which of these is an interface for control over serialization and deserialization?

Serializable

Externalization

FileFilter

ObjectInput

88. Which of these is wrapper around everything associated with a reply from an http server?

HTTP

HttpResponse

Httpserver

89. Which of these process occur automatically by java run time system?

Serialization

Garbage collection

File Filtering

All of the mentioned

90. Which of these method is used to change an element in a LinkedList Object?

Change()

Set()

Redo()

Add()