MCQ on Java Programming Language Fundamental

MCQ On Java Programming Language Fundamental Set12

1. A java program is first ................ and ................... A) executed, executed, run B) compiled, run C) run, compiled D) interpreted, compi compiled led

2. Byte Byt e code is also a ......... ........... .. A) machine code B) bit code C) cryptographi cryptographic c code D) none

3. A private class is accessible from inside a ................. A) package B) class C) method http://www.siteforinfotech.com/2014/08/mcq-on-java-programming-language.html

 

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D) none

4. Consider the statement "x=(a>b)?a:b", then the th e value of of x is 19, if a=19 and b=12 A) true B) not supported C) false D) none of the above

5. Adapter Ad apter classes cl asses are used for ....... ........... ........ .... A) code redundancy B) code reduction C) code organization D) none

6. ......... ............. ........ ........ .... inheritance inheritanc e is enable by interface i nterface in java. A) min mi n level B) multiple C) low level http://www.siteforinfotech.com/2014/08/mcq-on-java-programming-language.html

 

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D) none

7. .................... is generated if a button is clicked in AWT. A) ItemEve I temEvent nt B) WindowEvent C) ActionEvent D) MouseEvent

8. Using which whi ch keyword keyword we can access value of the instance and class variables of of that class inside insi de 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. val ue. A) integer B) number C) initial http://www.siteforinfotech.com/2014/08/mcq-on-java-programming-language.html

 

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D) float

10. In java, string is a A) primitive p rimitive data type type B) abstract data type C) combination combi nation of boolean boolean D) None of the above

11. Methods Methods can be overloaded overloaded with a difference only only in i n the th e 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 uniqu e name A) Not N ot necessarily necessarily B) True C) False http://www.siteforinfotech.com/2014/08/mcq-on-java-programming-language.html

 

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D) None of the above

13. It is an important i mportant feature of 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 or more abstract methods are not not implemented im plemented in an abstract class, then the subclass sub class is also abstract. A) Not N ot necessarily 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 http://www.siteforinfotech.com/2014/08/mcq-on-java-programming-language.html

 

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D) five

16. Which of the following is not subclass subcl ass of "writer" "writer" stream. stream. A) FileWriter B) LineWriter LineWriter C) Buffere B ufferedWriter dWriter D) PrintWriter

17. In java RMI, stub is located in A) client machine B) proxy proxy C) server D) none of the above

18. The new keyword will i) create in instance inst ance of an an object ii) create create instance of a class cl ass iii) assign memory to an array array iv) call the destructor of of a class http://www.siteforinfotech.com/2014/08/mcq-on-java-programming-language.html

 

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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 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 withi n instance methods methods iv) only within looping statements A) i, ii and iii B) i and iv http://www.siteforinfotech.com/2014/08/mcq-on-java-programming-language.html

 

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C) only iv D) ii, iii and iv

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