CS506-Midterm
1 / 50
BorderLayout is the default layout manager for a JFrame content pane
2 / 50
Which of the following exception belongs to a category of un-checked exception?
3 / 50
To create DataBaseMetaData object we write following line of code
4 / 50
Socket is a --------------communication channel between hosts.
5 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
6 / 50
If a super class method is protected then overriding method _________
7 / 50
The relationship between class and interface is called ________
8 / 50
Java developed in __________
9 / 50
Based on functionality, the streams can be categorized as________
10 / 50
Which of the following function will be used to register event handler with events generator (button)?
11 / 50
The collections API are defined in ______ package?
12 / 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);
13 / 50
Which of the following is true about abstract class?
14 / 50
A final class can't be extended.
15 / 50
In Java garbage collection is done by_______________
16 / 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).
17 / 50
In Java an abstract class cannot be sub-classed
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____________is/are the JSP Implicit Object(s).
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HahMap takes key as a/an _________
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If we remove String array from main then program____________
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Which of the following stream is a filter stream?
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A ___________ defines the way and method of communication between two parties.
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Java program code is compiled into form called
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25 / 50
A serializable class must implement the method(s) _________.
26 / 50
Mouse events can be trapped for ________ GUI component.
27 / 50
DSN stands for _________
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When defining a method you must include a ___________ to declare any exception that might be thrown but is not caught in the method.
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30 / 50
Event source can have --------- listeners registered on it.
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You can ---------to a network using sockets.
32 / 50
Which of the following is called ' pure abstract class ' ?
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A top level class without any modifier is accessible to
34 / 50
There are _________ types of exceptions in Java
35 / 50
Which of following can be thrown using the throw statement?
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Which of the following stream read/write data in the form of bytes?
37 / 50
Window Listener interface contains _______ methods.
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39 / 50
Which of these are valid declarations for the main method?
40 / 50
Static methods only access ___
41 / 50
In Java a final class must be sub-classed before it.
42 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
43 / 50
A top level class may have only the following access modifier.
44 / 50
Overloading is _______ whereas overriding is _____
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Which of the following methods are invoked by the AWT to support paint and repaint operations?
46 / 50
JavaBeans are?
47 / 50
BorderLayout is the default layout manager for a JFrame’s content pane
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50 / 50
An abstract class --------------- instantiated.
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