Java concepts and its programming MCQs

80 MCQs  — Computer Programming MCQs  (Page 2 of 8)

Attempt Java concepts and its programming Quiz
What do you mean by javap?
A. Java compiler
B. Java debugger
C. Java interpreter
D. Java disassemble
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Which command disassembles a class file_______________?
A. Javacmd
B. Javaamd
C. Javap
D. Java
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Main method parameter has which type of data type___________________?
A. Int
B. Char
C. String
D. Double
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Which driver is efficient and always preferable for using JDBC applications_____________?
A. Type-1 driver
B. Type-2 driver
C. Type-3 driver
D. Type-4 driver
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Name the keyword that makes a variable belong to a class, rather than being defined for each instance of the class?
A. Abstract
B. Static
C. Volatile
D. Final
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Which collection class associates values witch keys, and orders the keys according to their natural order ?
A. Java.util.linkedlist
B. Java.util.treemap
C. Java.util.sortedset
D. Java.util.hashset
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After the compilation of the java source code, which file is created by the JVM ?
A. .class
B. .doc
C. .java
D. .cdr
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Which method of java is invoked by JVM to reclaim the inaccessible memory location ?
A. Reclaim() method
B. Finalize() method
C. Final() method
D. Both b and c
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The object is created with “new” keyword ?
A. At compile-time
B. At run-time
C. Depends on the code
D. None of these
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Runnable is_______________?
A. Interface
B. Class
C. Variable
D. Method
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Word of the Day
10 Jul
Spur
a thing that prompts or encourages someone; an incentive.
اکسانے والی بات، آر،مہمیز

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