Java concepts and its programming MCQs

80 MCQs  — Computer Programming MCQs  (Page 5 of 8)

Attempt Java concepts and its programming Quiz
Which among following classes is not part of Java’s collection framework ?
A. Stack
B. Maps
C. Queue
D. Array
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Executable applet is_________________?
A. .class file
B. .java file
C. .java html
D. .applet file
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String is the predefined ?
A. Object
B. Variable
C. Class
D. Method
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All raw data types should be read and uploaded to the database as an array of________________?
A. Int
B. Byte
C. Char
D. Bollean
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The following fraction of code double STATIC = 2.5 ; System.out.println( STATIC ); ?
A. Prints 2.5
B. Raises an exception
C. Raises an error as static is used as a variable which is a keyword
D. None of these
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Which statements are most accurate regarding the following classes? class A{private int i; protected int j; } class B extends A{ private int k; protected int m; } ?
A. An object of b contains data fields j, k, m
B. An object of b contains data fields k, m
C. An object of b contains data fields j, m
D. An object of b contains data fields i, j, k, m
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_________ allows java code to run in the JVM to call and be called by native applications ?
A. Jni
B. Fji
C. Nji
D. Jfi
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pow () is associated with which class ?
A. Input stream class
B. Object class
C. Math class
D. None of above
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Which method is used to perform DML statements in JDBC ?
A. Executeupdate()
B. Executequery()
C. Execute()
D. None of above
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A package is a collection of__________________?
A. Classes and interfaces
B. Classes
C. Editing tools
D. Editing tools and interfaces
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Word of the Day
11 Jul
Envisage
contemplate or conceive of as a possibility or a desirable future event.
گمان کرنا، تصور کرنا، سوچنا

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