jsp - PowerPoint PPT Presentation

About This Presentation
Title:

jsp

Description:

jsp descriptiom – PowerPoint PPT presentation

Number of Views:16
Slides: 33
Provided by: dhavalpatel420
Tags:

less

Transcript and Presenter's Notes

Title: jsp


1
Advance Java Technology
  • Javas RoleMVC Architecture Swing

Prof.Chintan Dave
2
  • Who is the Founder of Java???????

3
  • Which is the Most Popular Machine Used in Day to
    Day Life Uses Java????????

4
  • Which is the Most Popular OS Uses Java as Prime
    Framework ???

5
  • Most Popular Companies uses Java as Prime
    Technology
  • Google
  • Yahoo
  • Microsoft
  • LinkedIn..endless list

6
Usage wise Programming Languages/Technologies
7
Common Architecture for Any Programming Technology
Application
Class Libraries
Run Time Environment
Operating System
8
Java Architecture
Application-Windows ,Web , Mobile .
Class Libraries-Packages
Run Time Environment-JVM
Operating System- Windows,Mac,Solaris
9
How Application Can be Developed
  • - Traditional Way of Developing an Application
    with FormsApproach
  • -Developing an Application with MVC Architecture
  • None is Best None is Worst Too--- Its Just on
    Requirements or Approach for an Application

10
MVC Architecture
a software design pattern for developing web
applications. Model - The lowest level of the
pattern which is responsible for maintaining
data. View - This is responsible for displaying
all or a portion of the data to the
user . Controller - Software Code that controls
the interactions between the Model and View.
11
What is Swing????
  • It is a SET of Programs which provides
    facility to Create GUI.
  • It is a Widget Toolkit
  • It is Part of JFC(Java Foundation Classes
  • It is Useful for Creating Rich Set of Desktop
    Application
  • IT MEANS its a PURE JAVA

12
What You Need to Run Java- SWING
  • JAVA SE- which can be downloaded from
    java.sun.com/javase

To Make Java Code Youll Need an Editor.Most
Popular Once are..
  • Notepad
  • Eclipse
  • Net beans
  • JCreator

13
Pluggable Look n Fell
  • Pluggable LF (PLAF) is basically a "skin"
    system for Swing components - you can change the
    style of your application by changing its LAF
  • Allows an Application Development to Highly
    Interactive GUI Component and Effects with ready
    made set of APIs

14
Applet Vs Swing
Swing Applet
Swing have its own Layout like most popular Box Layout. Applet uses AWT Layouts like flowlayout.
Swing is light weight Component. iTS Heavy Weight
Swing uses for stand lone Applications, Swing have main method to execute the program Applet need HTML code for Run the Applet
Swing Uses MVC Applet Does not
15
Swing Features
  • Lightweight - Swing component are independent of
    native Operating System's API as Swing API
    controls are rendered mostly using pure JAVA code
    instead of underlying operating system calls.
  • Rich controls - Swing provides a rich set of
    advanced controls like Tree, Tabbed Pane, slider,
    color picker, table controls
  • Highly Customizable - Swing controls can be
    customized in very easy way as visual appearance
    is independent of internal representation.

16
To Use Swing Components..
  • Create an Object of Component
  • For Example
  • JButton but new JButton()
  • Adding Component
  • For Example
  • Container cp getContentPane()
  • cp.add(new JButton(but))
  • Laying Out Component
  • Not so difficult but takes a little
    practice
  • JPanel p1 new JPanel()
  • p1.setLayout(new FlowLayout(FlowLayout.LEF
    T))

17
Simple Swing Example
import javax.swing.   public class Simple
  JFrame f   Simple()         fnew JFrame()
            JButton bnew JButton("click")
  b.setBounds(130,100,100, 40)
            f.add(b)             f.setSize(400,50
0)   f.setLayout(null)   f.setVisible(true)
   public static void main(String args)
  new Simple()      
18
JLabel
  • The class JLabel can display either text, an
    image,
  • or both
  • Example code

import javax.swing. class hello public
static void main(String args) JFrame f new
JFrame(title) JPanel p new
JPanel() JLabel b new JLabel(Demo
Label) p.add(b) // add labelto
panel f.setContentPane(p) // add panel to
frame f.show()
19
JButton
  • The class JButton is an implementation of a
  • push button. It can have Image also

20
Code - JButton
  • import javax.swing.
  • public class SimpleButton
  • JFrame f
  • SimpleButton()
  • fnew JFrame("Simple Button Example")
  • ImageIcon india new ImageIcon("india.jpg")
  • JButton jb new JButton("Our Flag",india)
  • JButton bnew JButton("click")
  • f.add(b)
  • f.add(jb)
  • b.setBounds(130,100,100, 40)
  • jb.setBounds(130,200,500,200)

f.setSize(400,500) f.setLayout(null) f.setVisib
le(true) f.setDefaultCloseOperation(JFrame.EXIT_O
N_CLOSE) public static void main(String
args) new SimpleButton()
21
JTextfield
  • The class JTextField is a component which allows
    the editing of a single line of text.
  • Common Constructors-
  • JTextField(String text)-
  • Constructs a new TextField initialized with
    the specified text.

22
Code - JTextField
  • import java.awt.
  • import java.awt.event.
  • import javax.swing.
  • //code that demonstrate use of JLabel,JButton,JTex
    tfield and Sample GUI Application
  • public class SimpleTextField
  • JFrame f
  • SimpleTextField()
  • //Setting Layout
  • fnew JFrame("Simple Button Example")
  • JPanel controlPanel new JPanel()
  • controlPanel.setLayout(new FlowLayout())

//Creating GUI Aspects for an Appllication
JLabel lblUsername new JLabel("Username",
JLabel.RIGHT) JLabel lblPassword new
JLabel("Password", JLabel.CENTER)
JTextField txtUsername new JTextField(10)
JTextField txtPassword new JTextField(10)
JButton btnLoginnew JButton("Login")
23
Code JTextField-Continue
  • //Adding Instance in Layout
  • controlPanel.add(lblUsername)
  • controlPanel.add(txtUsername)
  • controlPanel.add(lblPassword)
  • controlPanel.add(txtPassword)
  • controlPanel.add(btnLogin)
  • f.add(controlPanel)
  • f.setSize(400,500)
  • f.setVisible(true)

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
public static void main(String args) new
SimpleTextField() //calling GUI
24
Event Handling
  • What is an Event?
  • Change in the state of an object is known as
    event.
  • Types of Event
  • The events can be broadly classified into two
    categories
  • Foreground Events - Those events which require
    the direct interaction of user.
  • Background Events - Those events that require the
    interaction of end user are known as background
    events. Operating system interrupts

25
Code for Simple Even Handling
  • //Adding Instance in Layout
  • controlPanel.add(btnOk)
  • controlPanel.add(btnCancle)
  • controlPanel.add(btnRetry)
  • btnOk.addActionListener(new ButtonClickListener())
  • btnCancle.addActionListener(new
    ButtonClickListener())
  • btnRetry.addActionListener(new
    ButtonClickListener())
  • controlPanel.add(statusLabel)
  • f.add(controlPanel)
  • f.setSize(400,500)
  • f.setVisible(true)
  • f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS
    E)
  • import java.awt.
  • import java.awt.event.
  • import javax.swing.
  • //code that demonstrate use of JLabel,JButton,JTex
    tfield and Sample GUI Application
  • public class SimpleButtonEvent
  • JFrame f
  • JLabel statusLabelnew JLabel("Your Status")
  • SimpleButtonEvent()
  • //Setting Layout
  • fnew JFrame("Simple Button Example")
  • JPanel controlPanel new JPanel()
  • controlPanel.setLayout(new FlowLayout())
  • //Creating GUI Aspects for an Appllication
  • JButton btnOknew JButton("Ok")
  • JButton btnCanclenew JButton("Cancle")
  • JButton btnRetrynew JButton("Retry")

26
Code for Simple Even Handling
public static void main(String args) new
SimpleButtonEvent() //calling GUI
  • private class ButtonClickListener implements
    ActionListener
  • public void actionPerformed(ActionEvent e)
  • String command e.getActionCommand()
  • if( command.equals("Ok"))
  • statusLabel.setText("Ok Button
    clicked.")
  • else if( command.equals("Cancle") )
  • statusLabel.setText("Cancle Button
    clicked.")
  • else
  • statusLabel.setText("Retry Button
    clicked.")

27
JCheckBox
  • The class JCheckBox is an implementation of a
    check box - an item that can be selected or
    deselected, and which displays its state to the
    user.
  • Constructor-
  • JCheckBox(String text) Creates an initially
    unselected check box with text.
  • Method-
  • getStateChange() A Boolean Method to get
    the state of CheckBox
  • Event-
  • Listener Is ItemListener
  • Event is - ItemEvent

28
Code for Simple Checkbox
  • import java.awt.
  • import java.awt.event.
  • import javax.swing.
  • //code that demonstrate use of JLabel,JButton,JTex
    tfield and Sample GUI Application
  • public class SimpleCheckBox
  • JFrame f
  • SimpleCheckBox()
  • //Setting Layout
  • fnew JFrame("Simple CheckBox Example")
  • JPanel controlPanel new JPanel()
  • controlPanel.setLayout(new FlowLayout())
  • //Creating GUI Aspects for an Appllication
  • JCheckBox chkApple new JCheckBox("Apple")
  • JCheckBox chkMango new JCheckBox("Mango")
  • JCheckBox chkBanana new JCheckBox("Banana")

chkApple.addItemListener(new ItemListener()
public void itemStateChanged(ItemEvent e)
f.setTitle("Apple Checkbox "
(e.getStateChange()1?"checked""unchecked"))
)
f.add(controlPanel) f.setSize(400,500)
f.setVisible(true) f.setDefaultCloseOperation
(JFrame.EXIT_ON_CLOSE) public static void
main(String args) new SimpleCheckBox()
//calling GUI
29
JRadioButton
  • Same as Checkbox ButUsageis Different as per
    GUIs Needs

30
JList
  • The class JList is a component which displays a
    list of objects and allows the user to select one
    or more item
  • Constructor-
  • JList()- Constructs a JList with an empty,
    read-only, model.
  • Method-
  • addElement(String) To add an Element
    in a List
  • setSelectionMode()- selection
    mode for the list

31
Code for Simple List
  • import java.awt.
  • import java.awt.event.
  • import javax.swing.
  • //code that demonstrate use of JLabel,JButton,JTex
    tfield and Sample GUI Application
  • public class SimpleCheckBox
  • JFrame f
  • SimpleCheckBox()
  • //Setting Layout
  • fnew JFrame("Simple CheckBox Example")
  • JPanel controlPanel new JPanel()
  • controlPanel.setLayout(new FlowLayout())
  • //Creating GUI Aspects for an Appllication
  • JCheckBox chkApple new JCheckBox("Apple")
  • JCheckBox chkMango new JCheckBox("Mango")
  • JCheckBox chkBanana new JCheckBox("Banana")

chkApple.addItemListener(new ItemListener()
public void itemStateChanged(ItemEvent e)
f.setTitle("Apple Checkbox "
(e.getStateChange()1?"checked""unchecked"))
)
f.add(controlPanel) f.setSize(400,500)
f.setVisible(true) f.setDefaultCloseOperation
(JFrame.EXIT_ON_CLOSE) public static void
main(String args) new SimpleCheckBox()
//calling GUI
32
JComboBox
  • Same as Jlist but Usage is Different- Usage is As
    per GUI NEED
Write a Comment
User Comments (0)
About PowerShow.com