Interview Questions

AJAX Interview Questions Android Interview Questions Angular 2 Interview Questions AngularJs Interview Questions Apache Presto Interview Questions Apache Tapestry Interview Questions Arduino Interview Questions ASP.NET MVC Interview Questions Aurelia Interview Questions AWS Interview Questions Blockchain Interview Questions Bootstrap Interview Questions C Interview Questions C Programming Coding Interview Questions C# Interview Questions C++ Interview Questions Cakephp Interview Questions Cassandra Interview Questions CherryPy Interview Questions Clojure Interview Questions Cobol Interview Questions CodeIgniter interview Questions CoffeeScript Interview Questions Cordova Interview Questions CouchDB interview questions CSS Buttons Interview Questions CSS Interview Questions D Programming Language Interview Questions Dart Programming Language Interview Questions Data structure & Algorithm Interview Questions DB2 Interview Questions DBMS Interview Questions Django Interview Questions Docker Interview Questions DOJO Interview Questions Drupal Interview Questions Electron Interview Questions Elixir Interview Questions Erlang Interview Questions ES6 Interview Questions and Answers Euphoria Interview Questions ExpressJS Interview Questions Ext Js Interview Questions F# Interview Questions Firebase Interview Questions Flask Interview Questions Flex Interview Questions Fortran Interview Questions Foundation Interview Questions Framework7 Interview Questions FuelPHP Framework Interview Questions Go Programming Language Interview Questions Google Maps Interview Questions Groovy interview Questions GWT Interview Questions Hadoop Interview Questions Haskell Interview Questions Highcharts Interview Questions HTML Interview Questions HTTP Interview Questions Ionic Interview Questions iOS Interview Questions IoT Interview Questions Java BeanUtils Interview Questions Java Collections Interview Questions Java Interview Questions Java JDBC Interview Questions Java Multithreading Interview Questions Java OOPS Interview Questions Java Programming Coding Interview Questions Java Swing Interview Questions JavaFX Interview Questions JavaScript Interview Questions JCL (Job Control Language) Interview Questions Joomla Interview Questions jQuery Interview Questions js Interview Questions JSF Interview Questions JSP Interview Questions KnockoutJS Interview Questions Koa Interview Questions Laravel Interview Questions Less Interview Questions LISP Interview Questions Magento Interview Questions MariaDB Interview Questions Material Design Lite Interview Questions Materialize CSS Framework Interview Questions MathML Interview Questions MATLAB Interview Questions Meteor Interview Questions MongoDB interview Questions Moo Tools Interview Questions MySQL Interview Questions NodeJS Interview Questions OpenStack Interview Questions Oracle DBA Interview Questions Pascal Interview Questions Perl interview questions Phalcon Framework Interview Questions PhantomJS Interview Questions PhoneGap Interview Questions Php Interview Questions PL/SQL Interview Questions PostgreSQL Interview Questions PouchDB Interview Questions Prototype Interview Questions Pure CSS Interview Questions Python Interview Questions R programming Language Interview Questions React Native Interview Questions ReactJS Interview Questions RequireJs Interview Questions RESTful Web Services Interview Questions RPA Interview Questions Ruby Interview Questions Ruby on Rails Interview Questions SAS Interview Questions SASS Interview Questions Scala Interview Questions Sencha Touch Interview Questions SEO Interview Questions Servlet Interview Questions SQL Interview Questions SQL Server Interview Questions SQLite Interview Questions Struts Interview Questions SVG Interview Questions Swift Interview Questions Symfony PHP Framework Interview Questions T-SQL(Transact-SQL) Interview Questions TurboGears Framework Interview Questions TypeScript Interview Questions UiPath Interview Questions VB Script Interview Questions VBA Interview Questions WCF Interview Questions Web icon Interview Questions Web Service Interview Questions Web2py Framework Interview Questions WebGL Interview Questions Website Development Interview Questions WordPress Interview Questions Xamarin Interview Questions XHTML Interview Questions XML Interview Questions XSL Interview Questions Yii PHP Framework Interview Questions Zend Framework Interview Questions

Top 10 Java Swing Interview Questions for 2022

1) What is Java Swing?

It is a part of JFC (Java Foundation Classess) that is used to create window-based applications. Java Swing components are platform independent and lightweight .

2) What is difference between AWT and Swing?

The differences between AWT and Swing are:
AWT Swing
Platform-dependent Platform-independent
Heavyweight components Lightweight components
Doesn't support pluggable look and feel Supports pluggable look and feel
Doesn't Follow MVC (Model View Controller) Follow MVC (Model View Controller)
Less components More components

3) What are the methods of component class in Java Swing?

There are four types of methods of component class are:
  • public void add(Component c)
  • public void setSize(int width, int height)
  • public void setLayout(LayoutManager m)
  • public void setVisible(boolean b)

4) How many ways to create a frame in Java Swing ?

There are two ways to create a frame:
  • By Association(creating the object of Frame class)
  • By Inheritance(extending Frame class)

5) Write a simple Java Swing program to create a JButton and adding it on the JFrame object inside the main() method?

Example:
import javax.swing.*;  
public class SwingExample  
{  
public static void main(String[] args)  
{  
JFrame f=new JFrame("SIMPLE FRAME");  
JButton b=new JButton("Click Me");  
b.setBounds(50, 50, 100, 50);  
f.add(b);  
f.setSize(500, 500);  
f.setLayout(null);  
f.setVisible(true);  
}  
}

6) What are the methods of AbstractButton class in Java Swing?

There are several types of methods of AbstractButton class are:
  • void setIcon(Icon b)
  • Icon getIcon()
  • void setText(String s)
  • String getText()
  • void setEnabled(boolean b)
  • void setMnemonic(int a)
  • void addActionListener(ActionListener a)

7) Write a simple Java Swing program to create a JButton by inherit the JFrame Class?

Example:
import javax.swing.*;  
public class SwingExample2 extends JFrame  
{  
SwingExample2()  
{  
JButton b= new JButton("Click Me");  
b.setBounds(50, 50, 100, 50);  
add(b);  
setSize(500,500);  
setLayout(null);  
setVisible(true);  
}  
public static void main(String[] args)   
{  
new SwingExample2();  
}  
}

8) Write a simple Java Swing program to create a JButton With ActionListener?

Example of JButton with ActionListener:
import java.awt.event.*;  
import javax.swing.*;  
public class SwingExample3   
{  
public static void main(String[] args) {  
JFrame f=new JFrame();  
final JTextField tf=new JTextField();  
tf.setBounds(100, 50, 200, 30);  
JButton b=new JButton("Click Here");  
b.setBounds(100, 100, 95, 35);  
b.addActionListener(new ActionListener(){  
public void actionPerformed(ActionEvent e)  
{  
tf.setText("Welcome JavaSwing Expert");  
}  
});  
f.add(tf) ;f.add(b);  
f.setSize(500, 500);  
f.setLayout(null);  
f.setVisible(true);  
}  
}

9) Write a simple Java Swing program of displaying image on the button?

Example:
import javax.swing.*;  
public class SwingExample4 {  
SwingExample4()  
{  
JFrame f=new JFrame();  
JButton b=new JButton(new ImageIcon("C:\\132.jpg"));  
b.setBounds(125, 125, 125, 75);  
f.add(b);  
f.setSize(400, 400);  
f.setLayout(null);  
f.setVisible(true);  
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
}  
public static void main(String[] args)   
{  
new SwingExample4();  
}

10) What are the methods of JLabel class in Java Swing?

Methods of JLabel class are:
  • void setText(String text)
  • String getText()
  • Icon getIcon()
  • int getHorizontalAlignment()
  • void setHorizontalAlignment(int alignment)



ADVERTISEMENT
ADVERTISEMENT