CS506-Midterm
1 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
2 / 50
Which of the following method is used to execute SELECT SQL statements?
3 / 50
In Java an abstract class cannot be sub-classed
4 / 50
If we remove static from main then program __________
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A serializable class must implement the method(s) _________.
6 / 50
DSN stands for _________
7 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
8 / 50
Exceptions must be handled while handling files otherwise it may lead to____?
9 / 50
Which of the following exception belongs to a category of un-checked exception?
10 / 50
Aside from the Scanner class, which of the following class/es can be used for text file file input
11 / 50
A top level class without any modifier is accessible to
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If we remove String array from main then program____________
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Which of the following are passed as an argument to the paint () method:
14 / 50
Which of the following is a general purpose container?
15 / 50
Based on functionality, the streams can be categorized as________
16 / 50
Which of the following syntax is used to attach an input stream to console?
17 / 50
ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container.
18 / 50
You can ---------to a network using sockets.
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What if the static modifier is removed from the signature of the main method?
20 / 50
Which of the following stream is a filter stream?
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Exceptions must be handled while handling files otherwise it may lead to _____
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____________is/are the JSP Implicit Object(s).
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Socket is a --------------communication channel between hosts.
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If a super class method is protected then overriding method _________
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A top level class may have only the following access modifier.
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Which of these are valid declarations for the main method?
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Which of the following is true about abstract class?
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The relationship between class and interface is called ________
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30 / 50
A ___________ defines the way and method of communication between two parties.
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Which of the following package needs to import while interacting with relational database?
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Which of the following feature provide facility for multiple inheritances:-
33 / 50
Mouse events can be trapped for ________ GUI component.
34 / 50
A serializable class must implement the method(s)............
35 / 50
Event source can have --------- listeners registered on it.
36 / 50
To create DataBaseMetaData object we write following line of code
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38 / 50
A ................defines the way and method of communication between two parties
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Which of the following function will be used to register event handler with events generator (button)?
40 / 50
Overloading is _______ whereas overriding is _____
41 / 50
CREATE, ALTER, DROP are _________ SQL statements.
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BorderLayout is the default layout manager for a JFrame’s content pane
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All the exceptions and errors in java are inherited from _____ class.
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Which of the following belongs to a category of checked exception?
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An abstract class --------------- instantiated.
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The classes which contain the word _____ are byte oriented streams.
49 / 50
50 / 50
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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