CS506-Midterm
1 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
2 / 50
In Java an abstract class cannot be sub-classed
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In Java a final class must be sub-classed before it.
4 / 50
Which of the following is called ' pure abstract class ' ?
5 / 50
CREATE, ALTER, DROP are _________ SQL statements.
6 / 50
When defining a method you must include a ___________ to declare any exception that might be thrown but is not caught in the method.
7 / 50
All the exceptions and errors in java are inherited from _____ class.
8 / 50
Which of the following statements is true regarding Vectors with no specified base type?
9 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
10 / 50
BorderLayout is the default layout manager for a JFrame content pane
11 / 50
Which of following can be thrown using the throw statement?
12 / 50
A collection can store..........
13 / 50
ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container.
14 / 50
Overloading is _______ whereas overriding is _____
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Which of the following is true about AWT and SWING components?
16 / 50
The relationship between class and interface is called ________
17 / 50
A serializable class must implement the method(s) _________.
18 / 50
Which of the following method is used to execute SELECT SQL statements?
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Static methods only access ___
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What if the main method is declared as private?
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Which of the following stream read/write data in the form of bytes?
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You want a class to have access to members of another class in the same package. Which is the most restrictive access that accomplishes this objective?
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Event source can have --------- listeners registered on it.
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A top level class without any modifier is accessible to
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26 / 50
Window frame and dialog use ________ as their default layout.
27 / 50
Which of the following feature provide facility for multiple inheritances:-
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____________is/are the JSP Implicit Object(s).
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What if the static modifier is removed from the signature of the main method?
30 / 50
In Java garbage collection is done by_______________
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If we remove String array from main then program____________
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Which of these are valid declarations for the main method?
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34 / 50
Which of the following function will be used to register event handler with events generator (button)?
35 / 50
DSN stands for _________
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37 / 50
An abstract class ---------------instantiated.
38 / 50
HahMap takes key as a/an _________
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40 / 50
There are _________ types of exceptions in Java
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JPanel and Applet use ________ as their default layout.
42 / 50
Java developed in __________
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44 / 50
A top level class may have only the following access modifier.
45 / 50
To create DataBaseMetaData object we write following line of code
46 / 50
Exceptions must be handled while handling files otherwise it may lead to____?
47 / 50
Which of the following statement object is used to execute stored procedures?
48 / 50
Which of the following stream is a filter stream?
49 / 50
50 / 50
Exceptions must be handled while handling files otherwise it may lead to _____
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