1
Which of these functions is called to display the output of an applet?
Correct Answer
paint()
☑ MCQ PRACTICE
Object Oriented Programming through Java Unit 5
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
Object Oriented Programming through Java - Unit-5
2
Which package contains the Java Swing classes?
Correct Answer
javax.swing
3
Which layout manager is used by default for JFrame?
Correct Answer
BorderLayout
4
Which class is used to create a button in Java Swing?
Correct Answer
JButton
5
What is the purpose of the setVisible() method in JFrame?
Correct Answer
To make the frame visible on the screen
6
Which of these methods can be used to output a string in an applet?
Correct Answer
drawString()
7
Which of these methods is a part of Abstract Window Toolkit (AWT)?
Correct Answer
paint()
8
Which of these modifiers can be used for a variable so that it can be accessed from any thread or parts of a program?
Correct Answer
volatile
9
Which of these operators can be used to get run time information about an object?
Correct Answer
instanceof
10
______________________ follows MVC (Model View Controller) architecture.
Correct Answer
Swing
11
_________ is not a part of JFC (Java Foundation Classes) that is used to create GUI application?
Correct Answer
Swing
12
The ActionListener interface is used for handling action events,For example,it's used by a
Correct Answer
All of these
13
Java applets are used to create _______________ applications
Correct Answer
Both a & b
14
An Applet is a ________ of Panel:
Correct Answer
Subclass
15
Which method is used to add components to a container in Java Swing?
Correct Answer
add()
16
Which class is a subclass of Component?
Correct Answer
Container
17
What is the purpose of the setLayout() method in Java Swing?
Correct Answer
To set the layout manager for a container
18
The ____ method is used to obtain the current size of a window.
Correct Answer
getSize()
19
Which class is used to display text in Java Swing?
Correct Answer
JLabel
20
Which class is used to display images in Java Swing?
Correct Answer
JLabel
21
Which of these events will be generated if we close the applet?
Correct Answer
WindowListener
22
What is the default layouts for a applet, a frame and a panel?
Correct Answer
Flow layout, Border layout, Flow layout
23
An Applet has its Layout Manager set to the default of FlowLayout. What code would be the correct to change to another Layout Manager?
Correct Answer
setLayout(new GridLayout(2,2));
24
Which method is used to set the text content of a JTextField?
Correct Answer
setText()
25
Which of the following architecture does the Swing framework use?
Correct Answer
MVC
26
What is the purpose of the setDefaultCloseOperation() method in JFrame?
Correct Answer
To close the frame
27
Which class is used to display tabbed panes in Java Swing?
Correct Answer
JTabbedPane
28
The ………………… method called the first time an applet is loaded into the memory of a computer.
Correct Answer
init()
29
From the following statements which is a drawback for Applet?
Correct Answer
Plugin is required at client browser to execute applet
30
A ____ is the abstract foundation class for SWING's non-menu user interface controls?
Correct Answer
Component
31
A ____ is the basic class for all SWING UI components?
Correct Answer
Jcomponent
32
An ____ is a change in the state of an item?
Correct Answer
Event
33
Which of the following function is used to generate the application's top-level window?
Correct Answer
JFrame
34
____ is a container for other components and is used to build bespoke panels for organizing and arranging components?
Correct Answer
JPanel
35
Which of the following component gives a drop-down list of options from which to choose?
Correct Answer
JComboBox
36
The ____ class serves as the foundation for all Swing components.
Correct Answer
JComponent
37
In _____________the components are platform independent?
Correct Answer
Swing
38
An ____ is a java program that runs in a web browser.
Correct Answer
Applet
39
A ____ is a Swing framework component that offers a scroll bar that may be used to scroll content in a container.
Correct Answer
JScrollBar
40
The ____ function allows you to paint with a Graphics object.
Correct Answer
paint()
41
Which applet java.awt.component class provides the life cycle method?
Correct Answer
public void paint(Graphics g)
42
What invokes immediately after the start() method and also any time the applet needs to repaint itself in the browser?
Correct Answer
paint()
43
What is used to run an Applet?
Correct Answer
Both A & B
44
When an applet is terminated which of the following sequence of methods calls take place?
Correct Answer
stop(),destroy()
True / False
45
Is Applet and Application both are same in the swing framework? (Yes/No)
Correct Answer
No
46
Applet works at client side so less response time. (True / False)?
Correct Answer
True
47
The APPLET tag is used to start an applet from both an HTML document and from an applet viewer (True/False)?
Correct Answer
True
48
All Applets must import java.applet and java.awt. (True/False)?
Correct Answer
True
49
The APPLET tag is used to start an applet from both an HTML document and from an applet viewer (True/False)?
Correct Answer
True
50
Applet runs inside the browser and does not work at client side (True/False)?
Correct Answer
True