CS506-Midterm
1 / 50
Which of the following statements is true regarding Vectors with no specified base type?
2 / 50
An abstract class ---------------instantiated.
3 / 50
HahMap takes key as a/an _________
4 / 50
Java developed in __________
5 / 50
A serializable class must implement the method(s) _________.
6 / 50
Which of the following feature provide facility for multiple inheritances:-
7 / 50
There are _________ types of exceptions in Java
8 / 50
JPanel and Applet use ________ as their default layout.
9 / 50
Which of the following are passed as an argument to the paint () method:
10 / 50
A final class can't be extended.
11 / 50
Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
12 / 50
Which of the following statement object is used to execute stored procedures?
13 / 50
Which of the following are passed as an argument to the paint ( ) method?
14 / 50
The relationship between class and interface is called ________
15 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
16 / 50
Socket is a --------------communication channel between hosts.
17 / 50
In Java an abstract class cannot be sub-classed
18 / 50
Which of these are valid declarations for the main method?
19 / 50
Based on functionality, the streams can be categorized as________
20 / 50
A top level class may have only the following access modifier.
21 / 50
An expression tag contains a scripting language expression that is evaluated.
22 / 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?
23 / 50
24 / 50
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
25 / 50
Which of the following is true about abstract class?
26 / 50
If we remove static from main then program __________
27 / 50
You can ---------to a network using sockets.
28 / 50
29 / 50
Which of the following is used for inheritance in java?
30 / 50
Which of the following is a general purpose container?
31 / 50
JavaBeans are?
32 / 50
Which of the following stream is a filter stream?
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34 / 50
A top level class without any modifier is accessible to
35 / 50
If we remove String array from main then program____________
36 / 50
Mouse events can be trapped for ________ GUI component.
37 / 50
In Java garbage collection is done by_______________
38 / 50
39 / 50
Aside from the Scanner class, which of the following class/es can be used for text file file input
40 / 50
If a super class method is protected then overriding method _________
41 / 50
____________is/are the JSP Implicit Object(s).
42 / 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);
43 / 50
Which of following can be thrown using the throw statement?
44 / 50
What if the main method is declared as private?
45 / 50
Static methods only access ___
46 / 50
Window Listener interface contains _______ methods.
47 / 50
Event source can have --------- listeners registered on it.
48 / 50
What if the static modifier is removed from the signature of the main method?
49 / 50
An abstract class --------------- instantiated.
50 / 50
Exceptions must be handled while handling files otherwise it may lead to _____
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