CS506-Midterm
1 / 50
Which of the following is called ' pure abstract class ' ?
2 / 50
HahMap takes key as a/an _________
3 / 50
Which of following can be thrown using the throw statement?
4 / 50
Border layout divides the area into _______ regions
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If a super class method is protected then overriding method _________
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A serializable class must implement the method(s)............
7 / 50
Aside from the Scanner class, which of the following class/es can be used for text file file input
8 / 50
All the exceptions and errors in java are inherited from _____ class.
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10 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
11 / 50
Which of the following belongs to a category of checked exception?
12 / 50
Java developed in __________
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What if the main method is declared as private?
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Exceptions must be handled while handling files otherwise it may lead to____?
15 / 50
The classes which contain the word _____ are byte oriented streams.
16 / 50
____________is/are the JSP Implicit Object(s).
17 / 50
An abstract class --------------- instantiated.
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Which of the following exception belongs to a category of un-checked exception?
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Exceptions must be handled while handling files otherwise it may lead to _____
20 / 50
Which of the following method is used to execute SELECT SQL statements?
21 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
22 / 50
DSN stands for _________
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Overloading is _______ whereas overriding is _____
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Which of the following syntax is used to attach an input stream to console?
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In Java garbage collection is done by_______________
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ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container.
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A final class can't be extended.
28 / 50
A top level class without any modifier is accessible to
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Socket is a --------------communication channel between hosts.
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A ___________ defines the way and method of communication between two parties.
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32 / 50
A collection can store..........
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Based on functionality, the streams can be categorized as________
34 / 50
A top level class may have only the following access modifier.
35 / 50
JPanel and Applet use ________ as their default layout.
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BorderLayout is the default layout manager for a JFrame content pane
37 / 50
Mouse events can be trapped for ________ GUI component.
38 / 50
Event source can have --------- listeners registered on it.
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40 / 50
In Java, which of these classes implement the LayoutManager interface?
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Which of the following is true about AWT and SWING components?
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Java program code is compiled into form called
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44 / 50
Window Listener interface contains _______ methods.
45 / 50
An abstract class ---------------instantiated.
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Which of these are valid declarations for the main method?
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If we remove String array from main then program____________
48 / 50
The relationship between class and interface is called ________
49 / 50
Which of the following is used for inheritance in java?
50 / 50
In Java a final class must be sub-classed before it.
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