CS506-Midterm
1 / 50
Event source can have --------- listeners registered on it.
2 / 50
3 / 50
CREATE, ALTER, DROP are _________ SQL statements.
4 / 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).
5 / 50
To create DataBaseMetaData object we write following line of code
6 / 50
When defining a method you must include a ___________ to declare any exception that might be thrown but is not caught in the method.
7 / 50
Java developed in __________
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Which of the following package needs to import while interacting with relational database?
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Map interface is derived from the Collection interface.
10 / 50
A final class can't be extended.
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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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14 / 50
Exceptions must be handled while handling files otherwise it may lead to _____
15 / 50
Socket is a --------------communication channel between hosts.
16 / 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?
17 / 50
Window Listener interface contains _______ methods.
18 / 50
Which of the following method is used to execute SELECT SQL statements?
19 / 50
JavaBeans are?
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Which of the following methods are invoked by the AWT to support paint and repaint operations?
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A ................defines the way and method of communication between two parties
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ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container.
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In Java garbage collection is done by_______________
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Which of the following package needs to be import while handling files?
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The relationship between class and interface is called ________
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Which of the following are passed as an argument to the paint () method:
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Mouse events can be trapped for ________ GUI component.
28 / 50
Aside from the Scanner class, which of the following class/es can be used for text file file input
29 / 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);
30 / 50
BorderLayout is the default layout manager for a JFrame content pane
31 / 50
The classes which contain the word _____ are byte oriented streams.
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33 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
34 / 50
Exceptions must be handled while handling files otherwise it may lead to____?
35 / 50
Which of the following feature provide facility for multiple inheritances:-
36 / 50
An abstract class --------------- instantiated.
37 / 50
Which of the following function will be used to register event handler with events generator (button)?
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All the exceptions and errors in java are inherited from _____ class.
39 / 50
Aside from the Scanner class, which of the following classes can be used for text-file file input?
40 / 50
You can ---------to a network using sockets.
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42 / 50
A top level class may have only the following access modifier.
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Which of the following are passed as an argument to the paint ( ) method?
44 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
45 / 50
What if the main method is declared as private?
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47 / 50
Which of the following statements is true regarding Vectors with no specified base type?
48 / 50
Which of the following syntax is used to attach an input stream to console?
49 / 50
Static methods only access ___
50 / 50
What if the static modifier is removed from the signature of the main method?
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