CS506-Midterm
1 / 50
HahMap takes key as a/an _________
2 / 50
A top level class may have only the following access modifier.
3 / 50
What if the main method is declared as private?
4 / 50
ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container.
5 / 50
All the exceptions and errors in java are inherited from _____ class.
6 / 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?
7 / 50
You can ---------to a network using sockets.
8 / 50
An expression tag contains a scripting language expression that is evaluated.
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Event source can have --------- listeners registered on it.
10 / 50
A serializable class must implement the method(s)............
11 / 50
Which of following can be thrown using the throw statement?
12 / 50
DSN stands for _________
13 / 50
Which of the following exception belongs to a category of un-checked exception?
14 / 50
Border layout divides the area into _______ regions
15 / 50
To create DataBaseMetaData object we write following line of code
16 / 50
If a super class method is protected then overriding method _________
17 / 50
Which of the following is true about AWT and SWING components?
18 / 50
Which of the following feature provide facility for multiple inheritances:-
19 / 50
In Java a final class must be sub-classed before it.
20 / 50
Which of the following stream is a filter stream?
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22 / 50
In Java, which of these classes implement the LayoutManager interface?
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If we remove String array from main then program____________
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Which of the following function will be used to register event handler with events generator (button)?
25 / 50
In Java an abstract class cannot be sub-classed
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The code below draws a line. What color is the line? g.setColor(Color.red.green.yellow.red); g.drawLine(0, 0, 100,100);
27 / 50
28 / 50
BorderLayout is the default layout manager for a JFrame content pane
29 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
30 / 50
Which of the following is called ' pure abstract class ' ?
31 / 50
A ................defines the way and method of communication between two parties
32 / 50
When recursive method is called to solve a problem, the method actually is capable of solving only the simpler case(s), or base case(s).
33 / 50
Which of the following is true about abstract class?
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35 / 50
36 / 50
Which of the following is a general purpose container?
37 / 50
The relationship between class and interface is called ________
38 / 50
Mouse events can be trapped for ________ GUI component.
39 / 50
The collections API are defined in ______ package?
40 / 50
Which of the following stream read/write data in the form of bytes?
41 / 50
Java program code is compiled into form called
42 / 50
Aside from the Scanner class, which of the following classes can be used for text-file file input?
43 / 50
Based on functionality, the streams can be categorized as________
44 / 50
Which of the following syntax is used to attach an input stream to console?
45 / 50
A ___________ defines the way and method of communication between two parties.
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47 / 50
An abstract class --------------- instantiated.
48 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
49 / 50
A top level class without any modifier is accessible to
50 / 50
The classes which contain the word _____ are byte oriented streams.
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