Swings in java to develop applications in java

swing
• Java Swing is a lightweight GUI toolkit for building window-based applications. Here are some
key points about it:
Platform-Independent: Unlike AWT (Abstract Windowing Toolkit), Swing components are
platform-independent.
Lightweight: Swing components are lightweight, making them efficient for creating graphical
interfaces.
Rich Components: Swing provides powerful components like buttons, text fields, radio buttons,
menus, and more.
MVC Architecture: Swing follows the Model-View-Controller (MVC) pattern, separating data,
presentation, and control.

swing
• Swing is a Java Foundation Classes [JFC] library and an extension of the Abstract Window Toolkit [AWT].

Hierarchy of Java Swing classes

Commonly used Methods of Component class

simple swing example where we are creating one button and adding it on the JFrame object inside the
main() method.
import javax.swing.*;
public class FirstSwingExample {
public static void main(String[] args) {
JFrame f=new JFrame();//creating instance of JFrame
JButton b=new JButton("click");//creating instance of
JButton
b.setBounds(130,100,100, 40);//x axis, y axis, width,
height
f.add(b);//adding button in JFrame
f.setSize(400,500);//400 width and 500 height
f.setLayout(null);//using no layout managers
f.setVisible(true);//making the frame visible
}
}

Swings in java to develop applications in java

GUI?
• A system of interactive visual components for a computer or system
software is called a GUI (graphical user interface).
• GUI is the interface that uses graphical elements to let people interact
as per requirement with electronic devices including computers,
laptops, tablets, and smartphones.

public class example{
public static void main(String args[]) {
JFrame a = new JFrame("example");
JButton b = new JButton("click me");
b.setBounds(40,90,85,20);
a.add(b);
a.setSize(300,300);
a.setLayout(null);
a.setVisible(true);
}
}
Output:

JTextField Class
It inherits the JTextComponent class and it is used to allow editing of single line text.
public class example{
public static void main(String args[]) {
JTextField b = new JTextField("edureka");
b.setBounds(50,100,200,30);
a.add(b);
a.setSize(300,300);
a.setLayout(null);
a.setVisible(true);
}
}

JScrollBar Class
It is used to add scroll bar, both horizontal and vertical.
class example{
example(){
JScrollBar b = new JScrollBar();
b.setBounds(90,90,40,90);
a.add(b);
a.setSize(300,300);
a.setLayout(null);
a.setVisible(true);
}
public static void main(String args[]){
new example();
}
}

JList Class
It inherits JComponent class, the object of JList class represents a list of text items.
public class Example
{
Example(){
DefaultListModel<String> l = new DefaultListModel< >();
l.addElement("first item");
l.addElement("second item");
JList<String> b = new JList< >(l);
b.setBounds(100,100,75,75);
a.add(b);
a.setSize(400,400);
a.setVisible(true);
a.setLayout(null);
}
public static void main(String args[])
{
new Example();
}
}

JLabel Class
It is used for placing text in a container. It also inherits JComponent class.
public class Example{
{
JLabel b1;
b1 = new JLabel("edureka");
b1.setBounds(40,40,90,20);
a.add(b1);
a.setSize(400,400);
a.setLayout(null);
a.setVisible(true);
}
}

JComboBox Class
It inherits the JComponent class and is used to show pop up menu of choices.
public class Example{
JFrame a;
Example(){
a = new JFrame("example");
string courses[] = { "core java","advance java", "java servlet"};
JComboBox c = new JComboBox(courses);
c.setBounds(40,40,90,20);
a.add(c);
a.setSize(400,400);
a.setLayout(null);
a.setVisible(true);
}
{
new Example();
}
}

Example 2: Write a program to create three buttons with caption OK, SUBMIT, CANCEL

Swings in java to develop applications in java

More Related Content

Similar to Swings in java to develop applications in java (20)

Recently uploaded (20)

Swings in java to develop applications in java