Technology

1. Package Syntax:
package [.]*;
2. Valid Identifier
$Empko
3. Valid Boolean value
a) “true” b) ‘true’ c)true
4. Character datatype in umber occupies –16-bit Unicode character
5. Which system is employ to set an Integer value
autonomic nervous system: setInt
6.
[pic]
autonomic nervous system: C
7.
[pic]
autonomic nervous system: B and C
8.
[pic]
autonomic nervous system: C
9. Which keyword is used to raise exceptions -> Throw
10.
[pic].
Ans: C
11.
[pic]
Ans: A
12. Which keyword is used to indicate that method cannot be overriden ? – final
13. Which method is used to change the layout ? – setLayout
14. Which keyword is used to access the superclass constructor ? – super
15. Which is used to witness the length of an array ? – length
16. public synchronized void push() { }
17.
[pic]
Ans: C
18.
[pic]
Ans: B
19.
[pic]
Ans: A false B true
20.
[pic]
Ans: both(prenominal) Are True
21.
[pic]
Ans: A
22.
[pic]
Ans: B
23.
[pic]
Ans: Both are false
24.
[pic]
Ans: A
25. Which is used for executing a java file ? java MyApp
26. Which keyword indicates compulsory overriding of methods and cannot create an reject for a class ? Abstract
27. UML – Which class is control class ? occupation MANAGER
28.



UML – HR module-Leave CHECK ATTENDANCE
29.
[pic]
Ans: A,C,D are True and B is false
30.
[pic]
Ans: A,B,D are true
31.
[pic]
Ans: A
32.Thread class is in -> java.lang
33. a) In switch statement instead subject statement await can be used
b) In switch statement ……………….. return value is string
Ans: Both are false
34. File scratch -> Outputfile.txt is copied to Inputfile.txt
35.
[pic]
Ans: B
36.
[pic]
Ans: Both are True
37.
[pic]
Ans: A
38. Which is effectual statement for invoking a method ?
Employee empDet= new Employee()
empDet.getDet();
39. Set/List
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