CS506-Midterm
1 / 50
Which of the following package needs to be import while handling files?
2 / 50
Aside from the Scanner class, which of the following classes can be used for text-file file input?
3 / 50
Socket is a --------------communication channel between hosts.
4 / 50
Static methods only access ___
5 / 50
What if the main method is declared as private?
6 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
7 / 50
A top level class may have only the following access modifier.
8 / 50
A serializable class must implement the method(s)............
9 / 50
Mouse events can be trapped for ________ GUI component.
10 / 50
Which of the following stream is a filter stream?
11 / 50
Which of the following function will be used to register event handler with events generator (button)?
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13 / 50
When defining a method you must include a ___________ to declare any exception that might be thrown but is not caught in the method.
14 / 50
The relationship between class and interface is called ________
15 / 50
In Java garbage collection is done by_______________
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17 / 50
Which of the following is called ' pure abstract class ' ?
18 / 50
What if the static modifier is removed from the signature of the main method?
19 / 50
In Java, which of these classes implement the LayoutManager interface?
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
If we remove static from main then program __________
23 / 50
You can ---------to a network using sockets.
24 / 50
ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container.
25 / 50
A ___________ defines the way and method of communication between two parties.
26 / 50
Which of the following statement object is used to execute stored procedures?
27 / 50
Which of the following is a general purpose container?
28 / 50
Window Listener interface contains _______ methods.
29 / 50
Event source can have --------- listeners registered on it.
30 / 50
Which of the following is true about abstract class?
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32 / 50
An abstract class --------------- instantiated.
33 / 50
____________is/are the JSP Implicit Object(s).
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35 / 50
In Java a final class must be sub-classed before it.
36 / 50
A final class can't be extended.
37 / 50
38 / 50
A collection can store..........
39 / 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);
40 / 50
HahMap takes key as a/an _________
41 / 50
42 / 50
Exceptions must be handled while handling files otherwise it may lead to _____
43 / 50
DSN stands for _________
44 / 50
Java developed in __________
45 / 50
Which of the following syntax is used to attach an input stream to console?
46 / 50
47 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
48 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
49 / 50
Java program code is compiled into form called
50 / 50
Which of the following are passed as an argument to the paint ( ) method?
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