CS506-Midterm
1 / 50
A top level class may have only the following access modifier.
2 / 50
An abstract class --------------- instantiated.
3 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
4 / 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?
5 / 50
Exceptions must be handled while handling files otherwise it may lead to____?
6 / 50
An abstract class ---------------instantiated.
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Which of the following is used for inheritance in java?
8 / 50
Aside from the Scanner class, which of the following class/es can be used for text file file input
9 / 50
Aside from the Scanner class, which of the following classes can be used for text-file file input?
10 / 50
In Java a final class must be sub-classed before it.
11 / 50
Socket is a --------------communication channel between hosts.
12 / 50
A serializable class must implement the method(s)............
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Which of the following exception belongs to a category of un-checked exception?
14 / 50
Which of the following function will be used to register event handler with events generator (button)?
15 / 50
In Java an abstract class cannot be sub-classed
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Java program code is compiled into form called
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DSN stands for _________
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Map interface is derived from the Collection interface.
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A top level class without any modifier is accessible to
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CREATE, ALTER, DROP are _________ SQL statements.
21 / 50
If we remove String array from main then program____________
22 / 50
Which of the following stream is a filter stream?
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Which of the following statements is true regarding Vectors with no specified base type?
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A ___________ defines the way and method of communication between two parties.
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26 / 50
Which of the following is true about abstract class?
27 / 50
Which of the following syntax is used to attach an input stream to console?
28 / 50
HahMap takes key as a/an _________
29 / 50
Exceptions must be handled while handling files otherwise it may lead to _____
30 / 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).
31 / 50
Event source can have --------- listeners registered on it.
32 / 50
A final class can't be extended.
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Which of the following method is used to execute SELECT SQL statements?
34 / 50
In Java garbage collection is done by_______________
35 / 50
What if the main method is declared as private?
36 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
37 / 50
If a super class method is protected then overriding method _________
38 / 50
A serializable class must implement the method(s) _________.
39 / 50
Which of the following belongs to a category of checked exception?
40 / 50
Which of the following statement object is used to execute stored procedures?
41 / 50
Which of these are valid declarations for the main method?
42 / 50
If we remove static from main then program __________
43 / 50
An expression tag contains a scripting language expression that is evaluated.
44 / 50
Which of the following package needs to be import while handling files?
45 / 50
Which of the following are passed as an argument to the paint () method:
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47 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
48 / 50
Java developed in __________
49 / 50
____________is/are the JSP Implicit Object(s).
50 / 50
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