CS506-Midterm
1 / 50
In Java an abstract class cannot be sub-classed
2 / 50
Window Listener interface contains _______ methods.
3 / 50
If we remove static from main then program __________
4 / 50
Java program code is compiled into form called
5 / 50
CREATE, ALTER, DROP are _________ SQL statements.
6 / 50
Which of these are valid declarations for the main method?
7 / 50
HahMap takes key as a/an _________
8 / 50
If a super class method is protected then overriding method _________
9 / 50
Which of the following methods are invoked by the AWT to support paint and repaint operations?
10 / 50
11 / 50
Which of the following stream is a filter stream?
12 / 50
Which of the following statement object is used to execute stored procedures?
13 / 50
In Java a final class must be sub-classed before it.
14 / 50
Which of the following is called ' pure abstract class ' ?
15 / 50
You can ---------to a network using sockets.
16 / 50
Exceptions must be handled while handling files otherwise it may lead to____?
17 / 50
Which of the following is a general purpose container?
18 / 50
A top level class may have only the following access modifier.
19 / 50
A final class can't be extended.
20 / 50
Based on functionality, the streams can be categorized as________
21 / 50
A serializable class must implement the method(s) _________.
22 / 50
BorderLayout is the default layout manager for a JFrame content pane
23 / 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);
24 / 50
In Java garbage collection is done by_______________
25 / 50
BorderLayout is the default layout manager for a JFrame’s content pane
26 / 50
JPanel and Applet use ________ as their default layout.
27 / 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).
28 / 50
Which of the following is used for inheritance in java?
29 / 50
The relationship between class and interface is called ________
30 / 50
Which of the following syntax is used to attach an input stream to console?
31 / 50
32 / 50
Which of following can be thrown using the throw statement?
33 / 50
Map interface is derived from the Collection interface.
34 / 50
A ................defines the way and method of communication between two parties
35 / 50
A serializable class must implement the method(s)............
36 / 50
37 / 50
38 / 50
DSN stands for _________
39 / 50
What if the main method is declared as private?
40 / 50
Which of the following belongs to a category of checked exception?
41 / 50
Aside from the Scanner class, which of the following classes can be used for text-file file input?
42 / 50
In Java, which of these classes implement the LayoutManager interface?
43 / 50
An abstract class ---------------instantiated.
44 / 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?
45 / 50
The collections API are defined in ______ package?
46 / 50
A collection can store..........
47 / 50
Socket is a --------------communication channel between hosts.
48 / 50
Which of the following statements is true regarding Vectors with no specified base type?
49 / 50
Which of the following method is used to execute SELECT SQL statements?
50 / 50
Overloading is _______ whereas overriding is _____
Your score is
The average score is 32%
Restart quiz
