Question 1

Which of the following is correct way of implementing an interface salary by class manager?

Accepted Answer

A)  class Manager extends salary {}
B)  class Manager implements salary {}
C)  class Manager imports salary {}
D)  None of the mentioned.E) A) and B)
F) A) and C)

Question 2

Which of these is correct way of inheriting class A by class B?

Accepted Answer

A)  class B + class A {}
B)  class B inherits class A {}
C)  class B extends A {}
D)  class B extends class A {}E) A) and C)
F) A) and D)

Question 3

Which of these methods are used to register a mouse motion listener?

Accepted Answer

A)  addMouse() 
B)  addMouseListener() 
C)  addMouseMotionListner() 
D)  eventMouseMotionListener() E) None of the above
F) All of the above

Question 4

Which of the following is incorrect statement about packages?

Accepted Answer

A)  Package defines a namespace in which classes are stored.
B)  A package can contain other package within it.
C)  Java uses file system directories to store packages.
D)  A package can be renamed without renaming the directory in which the classes are stored.E) None of the above
F) All of the above D

Question 5

Consider the following list. int[] intList = {35, 12, 27, 18, 45, 16, 38}; What is the minimum number of comparisons that have to be made to find 18 using a sequential search on intList?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) A) and B)
F) None of the above

Question 6

Which of the following are true about interfaces.

Accepted Answer

A)  Methods declared in interfaces are implicitly private.
B)  Variables declared in interfaces are implicitly public, static, and final.
C)  An interface contains any number of method definitions.
D)  The keyword implements indicate that an interface inherits from another.E) A) and B)
F) B) and C)

Question 7

Which command disassembles a class file

Accepted Answer

A)  javaamd
B)  javacmd
C)  java
D)  javapE) B) and C)
F) A) and D) D

Question 8

Which of these packages contains all the classes and methods required for even handling in Java?

Accepted Answer

A)  java.applet
B)  java.awt
C)  java.event
D)  java.awt.eventE) A) and D)
F) None of the above

Question 9

To design a general-purpose search method, searchList, to search a list, which of the following must be parameters of the method searchList?
(i)  The array containing the list.
(ii)  The length of the list.
(iii)  The search item.
(iv)  A boolean variable indicating whether the search is successful.

Accepted Answer

A)  (i)  and (ii) 
B)  (i) , (ii) , and (iii) 
C)  (ii) , (iii) , and (iv) 
D)  (i) , (ii) , (iii) , and (iv) E) B) and D)
F) B) and C)

Question 10

For the interface WindowListener that contains more than one method, Java provides the class ____.

Accepted Answer

A)  MouseAdapter
B)  WindowAdapter
C)  KeyListener
D)  KeyAdapterE) A) and C)
F) A) and D)

Question 11

Which of these class contains the methods print()  & println() ?

Accepted Answer

A)  System
B)  System.out
C)  BufferedOutputStream
D)  PrintStreamE) All of the above
F) A) and B)

Question 12

What is a listener in context to event handling?

Accepted Answer

A)  A listener is a variable that is notified when an event occurs.
B)  A listener is a object that is notified when an event occurs.
C)  A listener is a method that is notified when an event occurs.
D)  None of the mentionedE) A) and D)
F) B) and C)

Question 13

Which method in Thread class is used to check weather a thread is still running?

Accepted Answer

A)  isAlive() 
B)  Join() 
C)  isRunning() 
D)  Alive() E) B) and C)
F) A) and B)

Question 14

In which package is the class Vector located?

Accepted Answer

A)  java.io
B)  java.lang
C)  java.util
D)  java.textE) A) and B)
F) B) and C)

Question 15

Which of the following statements is false as far as different type of statements is concern in JDBC?

Accepted Answer

A)  Regular Statement
B)  Prepared Statement
C)  Callable Statement
D)  Interim StatementE) B) and C)
F) A) and C)

Question 16

Which exception is thrown by read()  method?

Accepted Answer

A)  IOException
B)  InterruptedException
C)  SystemException
D)  SystemInputExceptionE) None of the above
F) A) and B)

Question 17

What is an event in delegation event model used by Java programming language?

Accepted Answer

A)  An event is an object that describes a state change in a source.
B)  An event is an object that describes a state change in processing.
C)  An event is an object that describes any change by the user and system.
D)  An event is a class used for defining object, to create events.E) A) and D)
F) All of the above

Question 18

Which of these methods are used to register a keyboard event listener?

Accepted Answer

A)  KeyListener() 
B)  addKistener() 
C)  addKeyListener() 
D)  eventKeyboardListener() E) B) and C)
F) A) and C) C

Exam 10: Java Programming Language: Inheritance, Interfaces, Packages, and Methods

Which of the following is correct way of implementing an interface salary by class manager?

Correct Answer
verified

Which of these is correct way of inheriting class A by class B?

Correct Answer
verified

Which of these methods are used to register a mouse motion listener?

Correct Answer
verified

Which of the following is incorrect statement about packages?

Correct Answer
verified
D

Consider the following list. int[] intList = {35, 12, 27, 18, 45, 16, 38}; What is the minimum number of comparisons that have to be made to find 18 using a sequential search on intList?

Correct Answer
verified

Which of the following are true about interfaces.

Correct Answer
verified

Which command disassembles a class file

Correct Answer
verified
D

Which of these packages contains all the classes and methods required for even handling in Java?

Correct Answer
verified

To design a general-purpose search method, searchList, to search a list, which of the following must be parameters of the method searchList? (i) The array containing the list. (ii) The length of the list. (iii) The search item. (iv) A boolean variable indicating whether the search is successful.

Correct Answer
verified

For the interface WindowListener that contains more than one method, Java provides the class ____.

Correct Answer
verified

Which of these class contains the methods print() & println() ?

Correct Answer
verified

What is a listener in context to event handling?

Correct Answer
verified

Which method in Thread class is used to check weather a thread is still running?

Correct Answer
verified

In which package is the class Vector located?

Correct Answer
verified

Which of the following statements is false as far as different type of statements is concern in JDBC?

Correct Answer
verified

Which exception is thrown by read() method?

Correct Answer
verified

What is an event in delegation event model used by Java programming language?

Correct Answer
verified

Which of these methods are used to register a keyboard event listener?

Correct Answer
verified
C

Exam 10: Java Programming Language: Inheritance, Interfaces, Packages, and Methods

Which of the following is correct way of implementing an interface salary by class manager?

Correct AnswerverifiedShow Answer

Which of these is correct way of inheriting class A by class B?

Correct AnswerverifiedShow Answer

Which of these methods are used to register a mouse motion listener?

Correct AnswerverifiedShow Answer

Which of the following is incorrect statement about packages?

Correct AnswerverifiedD

Consider the following list. int[] intList = {35, 12, 27, 18, 45, 16, 38}; What is the minimum number of comparisons that have to be made to find 18 using a sequential search on intList?

Correct AnswerverifiedShow Answer

Which of the following are true about interfaces.

Correct AnswerverifiedShow Answer

Which command disassembles a class file

Correct AnswerverifiedD

Which of these packages contains all the classes and methods required for even handling in Java?

Correct AnswerverifiedShow Answer

To design a general-purpose search method, searchList, to search a list, which of the following must be parameters of the method searchList? (i) The array containing the list. (ii) The length of the list. (iii) The search item. (iv) A boolean variable indicating whether the search is successful.

Correct AnswerverifiedShow Answer

For the interface WindowListener that contains more than one method, Java provides the class ____.

Correct AnswerverifiedShow Answer

Which of these class contains the methods print() & println() ?

Correct AnswerverifiedShow Answer

What is a listener in context to event handling?

Correct AnswerverifiedShow Answer

Which method in Thread class is used to check weather a thread is still running?

Correct AnswerverifiedShow Answer

In which package is the class Vector located?

Correct AnswerverifiedShow Answer

Which of the following statements is false as far as different type of statements is concern in JDBC?

Correct AnswerverifiedShow Answer

Which exception is thrown by read() method?

Correct AnswerverifiedShow Answer

What is an event in delegation event model used by Java programming language?

Correct AnswerverifiedShow Answer

Which of these methods are used to register a keyboard event listener?

Correct AnswerverifiedC

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C