Explain JAR Archives ? HTTP 1.0 uses a separate connection for every request. When you're downloading several small files, the time required to set up and tear down the connections can be a significant fraction of the total amount of time needed to load a page. It would be better if you could load all the HTML documents, images, applets, and sounds a page required in one connection. One way to do this without changing the HTTP protocol is to pack all those various files into a single archive file, perhaps a zip archive, and just download that. We aren't quite there yet. Browsers do not yet understand archive files, other than applets do. You can pack all the images, sounds, and .class files an applet needs into one JAR archive and load which instead of the individual files. Applet classes do not have to be loaded directly. They can also be stored in JAR archives. To do this you use the ARCHIVES attribute of the APPLET tag < applet code="HelloWorldApplet" width="200" height="100" archives="HelloWorld.jar"> < hr> Hello World! < hr> < /applet> In this example, the applet class is still HelloWorldApplet. Therefore, there is no HelloWorldApplet.class file to be downloaded. Instead the class is stored inside the archive file HelloWorld.jar. Sun provides a tool for creating JAR archives with its JDK. For example, $ jar cf HelloWorld.jar *.class This puts all the .class files in the current directory in the file named "HelloWorld.jar". The syntax of the jar command is deliberately same to the Unix tar command. Posted Date: 5/16/2013 6:05:00 AM | Location : United States

Ask an Expert

Your posts are moderated

Write your message here..

Related Questions

Nonrecursive implementations of the min() and floor() method, Write nonrecu... Write nonrecursive implementations of the min() and floor() methods in BST.java. Make sure to use only one return in your method. Use an insertion sort (discussed in class) to s

Online music store application, An online music store offers all songs for ... An online music store offers all songs for 3$ each. The store requires members to prepay any amount of money they wish, and then download as many songs accordingly. You are require

About object, How memory allocated for a object How memory allocated for a object

Implement decision tree algorithm using netbeans, Implement Decision Tree A... Implement Decision Tree Algorithm using Netbeans (Java) & Microsoft Access 2007. "One Level is enough, output should contains gain of each attribute, the selected attribute and

Explain any five buzz words in java, Question 1 Explain any five buzz w... Question 1 Explain any five buzz words in Java 2 Explain exception classes and also explain common exceptions in java 3 Explain primitive and abstract data type in java

What are the flow control statements in java? , The flow control statement... The flow control statements give you to conditionally execute statements, to repeatedly operate a block of statements, or to just modify the sequential flow of control.

Calculate Bill program, Notice that each row now has the type of customer a... Notice that each row now has the type of customer and the additional data needed. calculateBill remains the same in Customer.  However, the calculateBill in Corporate will add a

Explain ftp-telnet-voip and instant messaging, Write a brief note on each o... Write a brief note on each of the following. FTP Telnet Instant messaging VoIP FTP: File Transfer Protocol: This protocol is used to upload and download the

Methods in java, public class Foothill {    public static void main(String[... public class Foothill {    public static void main(String[] args)    {       Client person_1 = new Client("Bruce Ruprecht", 16000, 10);       Writer writer_1 = new Writer("Adam Buf

Explain some advantages of java, Platform independence is the key feature o... Platform independence is the key feature of Java during runtime. Syntax of java is same to the popular object oriented languages such as C and C++. Java program can eliminate most