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MCQ on Java Programming Language Fundamental set-12


1. A java program is first ................ and ...................

A) executed, run

B) compiled, run

C) run, compiled

D) interpreted, compiled


2. Byte code is also a ...........

A) machine code

B) bit code

C) cryptographic code

D) none


3. A private class is accessible from inside a .................

A) package

B) class

C) method

D) none


4. Consider the statement "x=(a>b)?a:b", then the value of x is 19, if a=19 and b=12

A) true

B) not supported

C) false

D) none of the above


5. Adapter classes are used for ...............

A) code redundancy

B) code reduction

C) code organization

D) none


6. ..................... inheritance is enable by interface in java.

A) min level

B) multiple

C) low level

D) none


7. .................... is generated if a button is clicked in AWT.

A) ItemEvent

B) WindowEvent

C) ActionEvent

D) MouseEvent


8. Using which keyword we can access value of the instance and class variables of that class inside the method of that class itself.

A) super

B) final

C) this

D) either super or this


9. If a variable is declared FINAL, it must include ......................... value.

A) integer

B) number

C) initial

D) float


10. In java, string is a

A) primitive data type

B) abstract data type

C) combination of boolean

D) None of the above


11. Methods can be overloaded with a difference only in the type of the return value

A) Not supported

B) False

C) True

D) None of the above


12. Each method in a java class must have a unique name

A) Not necessarily

B) True

C) False

D) None of the above


13. It is an important feature of java that it always provides a default constructor to a class

A) Not supported

B) False

C) True

D) None of the above


14. If one or more abstract methods are not implemented in an abstract class, then the subclass is also abstract.

A) Not necessarily

B) False

C) True

D) None of the above


15. Life cycle of an applet is described by .................. methods.

A) six

B) three

C) four

D) five


16. Which of the following is not subclass of "writer" stream.

A) FileWriter

B) LineWriter

C) BufferedWriter

D) PrintWriter


17. In java RMI, stub is located in

A) client machine

B) proxy

C) server

D) none of the above


18. The new keyword will

i) create in instance of an object

ii) create instance of a class

iii) assign memory to an array

iv) call the destructor of a class

A) i and iii

B) ii and iii

C) i and ii

D) ii, iii and iv


19. ODBC stands for

A) Object Data Binding Command

B) Open Database Console

C) Open Database Connectivity

D) Open Database Command


20. Continue statement can be used

i) anywhere inside main method

ii) anywhere inside class

iii) within instance methods

iv) only within looping statements

A) i, ii and iii

B) i and iv

C) only iv

D) ii, iii and iv





Show/Hide Answers:




1. A java program is first ................ and ...................

B) compiled, run

2. Byte code is also a ...........

D) none

3. A private class is accessible from inside a .................

B) class

4. Consider the statement "x=(a>b)?a:b", then the value of x is 19, if a=19 and b=12

A) true

5. Adapter classes are used for ...............

B) code reduction

6. ..................... inheritance is enable by interface in java.

B) multiple

7. .................... is generated if a button is clicked in AWT.

C) ActionEvent

8. Using which keyword we can access value of the instance and class variables of that class inside the method of that class itself.

C) this

9. If a variable is declared FINAL, it must include ......................... value.

C) initial

10. In java, string is a

B) abstract data type

11. Methods can be overloaded with a difference only in the type of the return value

B) False

12. Each method in a java class must have a unique name

A) Not necessarily

13. It is an important feature of java that it always provides a default constructor to a class

C) True

14. If one or more abstract methods are not implemented in an abstract class, then the subclass is also abstract.

C) True

15. Life cycle of an applet is described by .................. methods.

C) four

16. Which of the following is not subclass of "writer" stream.

B) LineWriter

17. In java RMI, stub is located in

A) client machine

18. The new keyword will

i) create in instance of an object

ii) create instance of a class

iii) assign memory to an array

iv) call the destructor of a class

A) i and iii

B) ii and iii

C) i and ii

D) ii, iii and iv

19. ODBC stands for

A) Object Data Binding Command

B) Open Database Console

C) Open Database Connectivity

D) Open Database Command

20. Continue statement can be used

i) anywhere inside main method

ii) anywhere inside class

iii) within instance methods

iv) only within looping statements

C) only iv



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