Computer Programming MCQs

5739 MCQs (Page 457 of 574)

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In Java byte, short, int and long all of these are ____________?

A. Signed
B. Unsigned
C. Both of the above
D. None of these

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Suspend thread can be revived by using ?

A. Yield() method
B. Suspend() method
C. Start() method
D. Resume() method

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Minimum threads in a program are________________?

A. 0
B. 1
C. 2
D. 3

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Which driver is called as thin-driver in JDBC ?

A. Type-1 driver
B. Type-2 driver
C. Type-3 driver
D. Type-4 driver

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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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