Steps to Display a Text file in an Applet Abhishek Mehta

Steps to Display a Text file in an Applet

Abhishek Mehta

Table of Contents

• Initial Conditions• Source code screenshots• Creating a Jar File• Adding a text file in the Jar file• Uploading the files on Ftp Server• Viewing Applet on the website• Errors and Solutions

Initial Conditions

• Go to the website http://www.eclipse.org and download the latest version of eclipse.

• Extract the downloaded file to a folder and then click the file named “eclipse.exe”– Create a workspace.– Workspace is the area where you create projects /

packages / Interface / Class files. – A folder will be created named “Workspace” in C:\

Documents and Settings\Abhishek Mehta\workspace.

Source Code Screenshot

Source Code (Cont’d)

Source Code (Cont’d)

Creating a Jar file

Creating a Jar file (Cont’d)

Creating a Jar file (Cont’d)

Creating a Jar file (Cont’d)

Creating a Jar file (Cont’d)

Creating a Jar file (Cont’d)

Jar File Created

Screenshot of Data File

Adding a Text File to a Jar File

• Jar files are same as zip files• Open .jar files with winzip or winrar• Add a text file to the archive• Save the file• Next slides will show you the

screenshots

Adding a Text File to a Jar File

Adding a Text file to a Jar file

Adding a Text file to a Jar file

View of Jar file after adding the Text File – “data.txt”

Creating HTML File

• HTML File is required to view the applet on the website

• Name the HTML file with a convenient name

• Save the file, in my case it is on the Desktop

• The next slide will show the contents of the HTML file

HTML File

Uploading the files on FTP Server

• So far we have two files HTML File Jar File (Class file + Text File)

• Upload the Files on any of the Ftp servers from afs1.njit.edu – afs30.njit.edu

• The files should be placed in the “public_html” folder

Screenshot of my FTP space

Applet on Website

• Type the following in the address barhttp://web.njit.edu/~UCID/filename.html

In my case,http://web.njit.edu/~arm36/ReadFile.html

Screenshot of Applet on Website

Applet on Local Computer(using Applet Viewer)

Errors and solution

• One Silly mistake; Did you update the new class file

• If you don’t see the applet on the website Check the java file, the class should be defined

public

OR Check if both the .jar file and the html file are placed

in the same folder

OR Check if you add the data file in the .jar file

References

• Eclipse Tutorial• Java 2 SE API