CS506-Midterm
1 / 50
If a super class method is protected then overriding method _________
2 / 50
Mouse events can be trapped for ________ GUI component.
3 / 50
Exceptions must be handled while handling files otherwise it may lead to _____
4 / 50
What if the main method is declared as private?
5 / 50
The collections API are defined in ______ package?
6 / 50
Which of the following statement object is used to execute stored procedures?
7 / 50
8 / 50
Which of the following package needs to import while interacting with relational database?
9 / 50
There are _________ types of exceptions in Java
10 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
11 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
12 / 50
In Java a final class must be sub-classed before it.
13 / 50
Based on functionality, the streams can be categorized as________
14 / 50
An abstract class --------------- instantiated.
15 / 50
Static methods only access ___
16 / 50
Which of the following is true about abstract class?
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18 / 50
Window frame and dialog use ________ as their default layout.
19 / 50
Socket is a --------------communication channel between hosts.
20 / 50
A final class can't be extended.
21 / 50
Which of the following is called ' pure abstract class ' ?
22 / 50
Aside from the Scanner class, which of the following class/es can be used for text file file input
23 / 50
Map interface is derived from the Collection interface.
24 / 50
Which of the following function will be used to register event handler with events generator (button)?
25 / 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).
26 / 50
An abstract class ---------------instantiated.
27 / 50
Which of the following method is used to execute SELECT SQL statements?
28 / 50
29 / 50
Which of the following stream read/write data in the form of bytes?
30 / 50
Window Listener interface contains _______ methods.
31 / 50
Aside from the Scanner class, which of the following classes can be used for text-file file input?
32 / 50
Java program code is compiled into form called
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JavaBeans are?
34 / 50
Event source can have --------- listeners registered on it.
35 / 50
In Java an abstract class cannot be sub-classed
36 / 50
A serializable class must implement the method(s)............
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38 / 50
DSN stands for _________
39 / 50
Which of these are valid declarations for the main method?
40 / 50
A top level class may have only the following access modifier.
41 / 50
All the exceptions and errors in java are inherited from _____ class.
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43 / 50
If we remove String array from main then program____________
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45 / 50
The relationship between class and interface is called ________
46 / 50
You want a class to have access to members of another class in the same package. Which is the most restrictive access that accomplishes this objective?
47 / 50
ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container.
48 / 50
Which of the following statements is true regarding Vectors with no specified base type?
49 / 50
Which of the following exception belongs to a category of un-checked exception?
50 / 50
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