CS506-Midterm
1 / 50
An abstract class --------------- instantiated.
2 / 50
Which of the following package needs to be import while handling files?
3 / 50
Which of the following syntax is used to attach an input stream to console?
4 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
5 / 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);
6 / 50
A top level class may have only the following access modifier.
7 / 50
HahMap takes key as a/an _________
8 / 50
There are _________ types of exceptions in Java
9 / 50
A collection can store..........
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11 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
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Which of the following is called ' pure abstract class ' ?
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Which of the following methods are invoked by the AWT to support paint and repaint operations?
14 / 50
What if the static modifier is removed from the signature of the main method?
15 / 50
DSN stands for _________
16 / 50
In Java an abstract class cannot be sub-classed
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Which of the following is true about abstract class?
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Event source can have --------- listeners registered on it.
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If a super class method is protected then overriding method _________
20 / 50
Aside from the Scanner class, which of the following class/es can be used for text file file input
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You can ---------to a network using sockets.
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Exceptions must be handled while handling files otherwise it may lead to____?
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Which of the following statement object is used to execute stored procedures?
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Window Listener interface contains _______ methods.
25 / 50
Socket is a --------------communication channel between hosts.
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Which of the following is used for inheritance in java?
27 / 50
Mouse events can be trapped for ________ GUI component.
28 / 50
29 / 50
BorderLayout is the default layout manager for a JFrame’s content pane
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JPanel and Applet use ________ as their default layout.
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Which of the following package needs to import while interacting with relational database?
32 / 50
The classes which contain the word _____ are byte oriented streams.
33 / 50
Map interface is derived from the Collection interface.
34 / 50
A top level class without any modifier is accessible to
35 / 50
Exceptions must be handled while handling files otherwise it may lead to _____
36 / 50
Which of the following are passed as an argument to the paint () method:
37 / 50
____________is/are the JSP Implicit Object(s).
38 / 50
Java developed in __________
39 / 50
The relationship between class and interface is called ________
40 / 50
What if the main method is declared as private?
41 / 50
An expression tag contains a scripting language expression that is evaluated.
42 / 50
Which of the following function will be used to register event handler with events generator (button)?
43 / 50
In Java a final class must be sub-classed before it.
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45 / 50
If we remove String array from main then program____________
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48 / 50
BorderLayout is the default layout manager for a JFrame content pane
49 / 50
JavaBeans are?
50 / 50
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