Good presentation for university or college students ....

1. Simple Web Browser
PROJECT TITLE

2. Group Name: STML
Md . Sohag
Em@il : sohag.0315@gmail.com
Daffodil international University
Presented by:

3. OBJECTIVE
To use basic concept of java.
To Create graphical user interfaces with
various user-interface controls.
To know how web browser work.

4. INTRODUCTION
Web browser is key to internet these days ,at least for
more tasks . There are many browsers for every platform
and operating System. Here we make a simple browser.

5. FEATURES
This browser was quite simple.
Browse http:// sites.
We can open new window without closing other window.
Search anything.
Download Files save download menu.
Use private window to private Browsing.
personalize Browser with extra functionality or style use
add-ons

6. 6
Software Requirements Hardware Requirements
Operating System: Windows Processor: any
User Interface: HTML Hard Disk: 10 GB minimum
Programming Language:
JAVA
RAM: 256MB or more
JDK Any Screen
IDE: Eclipse
System Requirements

7. Project Description
 How we access the Web from Java
 URL is an object
 Open a connection, then a stream.
 Basically, treat it like a file.
 Creating a Web browser in Java
 JEditorPane understands HTML (Text)
 Have to deal with hyperlinks as an event

8. Design Menu
public class Menu extends JFrame
implements ActionListener{
private JEditorPane display=new JEditorPane();
public JButton cut=new JButton("CUT");
public void frameHandler() {
setTitle("Menu");
setSize(400,400);
setVisible(true);
setResizable(false);
setLayout(null);
setLocationRelativeTo(null);
addComponentsToFrame(getContentPane());
}
public void addComponentsToFrame(Container Pane) {
Insets insets=getInsets();
Pane.add(cut);
cut.setBounds(20-insets.left,30-insets.top,80,30);
}

9. Design Options
public class Options extends JFrame {
public JEditorPane display=new JEditorPane();
public JButton general=new JButton("General");
public void frameHandler() {
setTitle("Options");
setSize(400,400);
setVisible(true);
setResizable(false);
setLayout(null);
setLocationRelativeTo(null);
addComponentsToFrame(getContentPane());
}
public void addComponentsToFrame(Container Pane) {
Insets insets=getInsets();
Pane.add(general);
general.setBounds(20-insets.left,30-insets.top,150,30);
}
}

10. *
/**
* A Simple Web Browser
* Uses a JEditorPane() which knows how to interpret HTML
**/
// Lots of imports!
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.html.*;
We need all of these for
Swing, networking, I/O
(Input/Output exceptions),
and HTML processing.
Simple Web Browser

11. *
public class Browser extends JFrame {
/// Fields
/** A field for the URL to be entered **/
private JTextField locationTextField;
private JEditorPane displayEditorPane;
Simple Web Browser

12. JEditorPane gets a
scrollpane
JScrollPanes contain
something that is scrolled—
here, a JEditorPane.
We put the JScrollPane in
the Center so that it gets
emphasized in the
BorderLayout renderer.
displayEditorPane = new JEditorPane();
displayEditorPane.setContentType("text/html");
displayEditorPane.setEditable(false);
displayEditorPane.addHyperlinkListener(this);
getContentPane().setLayout(new
BorderLayout());
getContentPane().add(buttonPanel,
BorderLayout.NORTH);
getContentPane().add(new
JScrollPane(displayEditorPane),
BorderLayout.CENTER);

13. *
private URL verifyUrl(String url) {
if (!url.toLowerCase().startsWith("http://"))
return null;
// Verify format of URL.
URL verifiedUrl = null;
try {
verifiedUrl = new URL(url);
} catch (Exception e) {
return null;
}
return verifiedUrl;
}
Dealing with exceptions in all these cases is
required. The compiler flags these as errors.
How we load pages

14. *
Accesses to the
network can (of
course!) lead to
network errors, so we
have to deal with that
possibility.
private void showPage(URL pageUrl, boolean
addToList) {
try {
displayEditorPane.setPage(pageUrl);
URL newUrl =
displayEditorPane.getPage();
locationTextField.setText(newUrl.toString());
} catch (Exception e) {
System.out.println("Unable to load
page");
}
}
But there are exceptions

15. Inheritance
Constructor
Access
Modifier
Simple Web Browser

16. Browsing DIU Website

17. Google and Facebook

18. Reasons of choosing
this project
 Curiosity
Integral part of internet users
It is one of the software that we use most
during internet surfing for visiting web sites or
reaching out to any information available.

19. Benefits Of The Project
 After doing this project we know how a
web browser work.
 know many features of GUI.
Getting more idea about basic concepts of
java
Getting more experience about making any
project.

20. Conclusion
Easier to develop
More useful for the users
Easier to maintains and keep secure
Easier to grow as grow

21. Be Not Afraid Of Falling Be Afraid Of Not Trying