CS506-Midterm
1 / 50
Which of the following belongs to a category of checked exception?
2 / 50
DSN stands for _________
3 / 50
HahMap takes key as a/an _________
4 / 50
The relationship between class and interface is called ________
5 / 50
Which of the following is called ' pure abstract class ' ?
6 / 50
Overloading is _______ whereas overriding is _____
7 / 50
A top level class without any modifier is accessible to
8 / 50
In Java a final class must be sub-classed before it.
9 / 50
Which of the following package needs to be import while handling files?
10 / 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);
11 / 50
All the exceptions and errors in java are inherited from _____ class.
12 / 50
Static methods only access ___
13 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
14 / 50
Which of following can be thrown using the throw statement?
15 / 50
An expression tag contains a scripting language expression that is evaluated.
16 / 50
CREATE, ALTER, DROP are _________ SQL statements.
17 / 50
If a super class method is protected then overriding method _________
18 / 50
Map interface is derived from the Collection interface.
19 / 50
The collections API are defined in ______ package?
20 / 50
Which of the following stream read/write data in the form of bytes?
21 / 50
Border layout divides the area into _______ regions
22 / 50
Aside from the Scanner class, which of the following classes can be used for text-file file input?
23 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
24 / 50
A top level class may have only the following access modifier.
25 / 50
Which of these are valid declarations for the main method?
26 / 50
Which of the following is used for inheritance in java?
27 / 50
Which of the following syntax is used to attach an input stream to console?
28 / 50
Mouse events can be trapped for ________ GUI component.
29 / 50
If we remove static from main then program __________
30 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
31 / 50
Which of the following method is used to execute SELECT SQL statements?
32 / 50
Window Listener interface contains _______ methods.
33 / 50
You can ---------to a network using sockets.
34 / 50
A serializable class must implement the method(s) _________.
35 / 50
Which of the following exception belongs to a category of un-checked exception?
36 / 50
37 / 50
JavaBeans are?
38 / 50
Which of the following stream is a filter stream?
39 / 50
In Java an abstract class cannot be sub-classed
40 / 50
Which of the following are passed as an argument to the paint () method:
41 / 50
Which of the following is true about abstract class?
42 / 50
A serializable class must implement the method(s)............
43 / 50
In Java, which of these classes implement the LayoutManager interface?
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45 / 50
46 / 50
Socket is a --------------communication channel between hosts.
47 / 50
JPanel and Applet use ________ as their default layout.
48 / 50
BorderLayout is the default layout manager for a JFrame content pane
49 / 50
Which of the following are passed as an argument to the paint ( ) method?
50 / 50
In Java garbage collection is done by_______________
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