CS506-Midterm
1 / 50
A serializable class must implement the method(s)............
2 / 50
Which of the following package needs to import while interacting with relational database?
3 / 50
Border layout divides the area into _______ regions
4 / 50
Map interface is derived from the Collection interface.
5 / 50
Window frame and dialog use ________ as their default layout.
6 / 50
DSN stands for _________
7 / 50
A collection can store..........
8 / 50
Event source can have --------- listeners registered on it.
9 / 50
Exceptions must be handled while handling files otherwise it may lead to _____
10 / 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).
11 / 50
In Java garbage collection is done by_______________
12 / 50
What if the static modifier is removed from the signature of the main method?
13 / 50
A top level class may have only the following access modifier.
14 / 50
An abstract class ---------------instantiated.
15 / 50
A top level class without any modifier is accessible to
16 / 50
BorderLayout is the default layout manager for a JFrame content pane
17 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
18 / 50
To create DataBaseMetaData object we write following line of code
19 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
20 / 50
All the exceptions and errors in java are inherited from _____ class.
21 / 50
The code below draws a line. What color is the line? g.setColor(Color.red.green.yellow.red); g.drawLine(0, 0, 100,100);
22 / 50
Which of the following belongs to a category of checked exception?
23 / 50
What if the main method is declared as private?
24 / 50
Which of the following stream is a filter stream?
25 / 50
Socket is a --------------communication channel between hosts.
26 / 50
If a super class method is protected then overriding method _________
27 / 50
In Java, which of these classes implement the LayoutManager interface?
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An abstract class --------------- instantiated.
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The relationship between class and interface is called ________
32 / 50
Which of the following is called ' pure abstract class ' ?
33 / 50
Which of the following function will be used to register event handler with events generator (button)?
34 / 50
The collections API are defined in ______ package?
35 / 50
Which of the following method is used to execute SELECT SQL statements?
36 / 50
Mouse events can be trapped for ________ GUI component.
37 / 50
Which of the following statement object is used to execute stored procedures?
38 / 50
Which of the following is true about abstract class?
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40 / 50
Based on functionality, the streams can be categorized as________
41 / 50
Which of the following is a general purpose container?
42 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
43 / 50
HahMap takes key as a/an _________
44 / 50
In Java an abstract class cannot be sub-classed
45 / 50
JavaBeans are?
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48 / 50
A serializable class must implement the method(s) _________.
49 / 50
50 / 50
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