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MVC was first described by Xerox in a number of papers published in the late Subject Name. Screen Technologies. Effective for Speaker notes, Slide shows Semester V : Java Programming ; B. Semester V. Objectives To understand how to develop web Course Code - BCS Sketch out your site on paper.
Devise a simple This FTP site discusses the topic drug testing in the workplace and is paper Page 5 of Internet PDF ; The internet is the largest computer network in the world, connecting millions of computers. SK Rath. Download [ Computer Organization and Architecture - Nptel ; This web course is divided into 11 Modules, which is further The main text books used for preparing these lecture notes are: 1.
For our convenient, while writing in paper, we may take help of other number systems like Web Technology Lab.
Computer Fundamentals - by P. Chapter Internet If you want some more notes on any of the topics please mail to us or Oopc may 15 questions paper dedo I am a student of 1st bca I want details of types of business software Submitted By The examination of each semester will consist of four theory papers, and Calling a Function Calling the function actually performs the specified actions.
A parameter is a variable from outside of the defined function on which the function will act. These values here are what the function will need to perform the actions in the function. Make sure that the values you pass in are in the correct order because the function will take them in and assign these values to the parameters in the parentheses of the function declaration. Once you pass values into your function, you can use them however you want within your function. Try it for yourself: When you click on the words below, a confirmation box will pop up and then the link will bring you to the top of the page.
If the condition is false, another set of statements can be executed through the use of the else keyword. The main idea behind if statements is embodied by the sentence: "If the weather's good tomorrow, we'll go out and have a picnic and Lisa will do cartwheels -- else, we'll stay in and Catherine will watch TV.
Parentheses are required around the condition. If condition evaluates to true, the statements in statements1 are executed. Multiple statements must be enclosed in braces.
Loops handle repetitive tasks extremely well, especially in the context of consecutive elements. Arrays immediately spring too mind here, since array elements are numbered consecutively. It would be quite intuitive and equally practical , for instance, to write a loop that added 1 to each element within an array.
Don't worry if this doesn't make a lot of sense now, it will, after you finish reading the tutorial. The two most common types of loops are for and while loops: for Loops A for loop constitutes a statement which consists of three expressions, enclosed in parentheses and separated by semicolons, followed by a block of statements executed in the loop. This definition may, at first, sound confusing. Indeed, it is hard to understand for loops without seeing them in action.
See the section on variables for more information. It is typically used to initialize a counter variable. This expression may optionally declare new variables with the var keyword. The condition is evaluated on each pass through the loop. If this condition evaluates to true, the statements in statements are performed.
When the condition evaluates to false, the execution of the for loop stops. This conditional test is optional. If omitted, the condition always evaluates to true. The increment-expression is generally used to update or increment the counter variable.
The statements constitute a block of statements that are executed as long as condition evaluates to true. This can be a single statement or multiple statements. Although not required, it is good practice to indent these statements from the beginning of the for statement to make your code more readable. Check out the following for statement.
It starts by declaring the variable i and initializing it to zero. The two can fill in for one another - using either one is only a matter of convenience or preference according to context. The loop then repeats, as long as the specified condition is true. If this condition evaluates to true, the statements in the succeeding block are performed. When condition evaluates to false, execution continues with the statement following statements.
Although not required, it is good practice to indent these statements from the beginning of the statement. The following while loop iterates as long as n is less than three.
These are important because they allow someone to browse your code and understand what the various functions do or what your variables represent.
Dynamic patterns are created using the keyword new. Class String functions match pattern This function searches a matching pattern. Returns array holding the results. If the search is successful pattern1 is replaced with pattern2. If the match is successful, the index of the start of the match is returned. If the search fails, the function returns Returns an array holding the results of the operation.
Some of the functions are mentioned below.
Date : Construct an empty date object. Date year, month, day [,hour, minute, second] :Create a new Date object based upon numerical values for the year, month and day. Optional time values may also be supplied.
XML is used to describe the structure of a document not the way that is presented. The first line is the processing instruction which tells applications how to handle the XML. It is also serves as version declaration and says that the file is XML. A well formed document is one which follows all of the rules of XML.
Tags are matched and do not overlap, empty elements are ended properly, and the document contains an XML declaration. Most of the markup in an XML document is element markup. Elements are surrounded by tags much as they are in HTML. Each document has a single root element which contains al of the other markup. Nesting tags: Even the simplest XML document has nested tags. Unlike HTML these must be properly nested and closed in the reverse of the order in which they were opened.
Case Sensitive: XML is case sensitive and you must use lower case for your markup. Empty tags: Some tags are empty, they dont have content. Control Information: There are three types of control information Comments processing instructions 32 document type declaration. The DTD is usually present in separate file, so that it can be used by many files.
YSTEM student. DTD are document centric.
They are well understood. There are plenty of tools that support DTD. There are two models commonly used for parsers i. SAX parsers are used when dealing with streams of data. This type of parsers are usually used with java. SAX-based parsers run quickly. They can build static documents, navigate and search through them, add new elements, delete elements, and modify the content of existing elements. The views XML document as trees. The DOM exposes the whole of the document to applications. It is also scriptable so applications can manipulate the individual nodes.
XSL basically transforms one data structure to another i. It thus played an important role in popularising use of the Internet. The advent of the Mosaic web browser helped to make the web much more usable, to include the display of images and moving images GIFs. The terms Internet and World Wide Web are often used without much distinction. However, the two terms do not mean the same thing. The Internet is a global system of interconnected computer networks. In contrast, the World Wide Web is a global collection of documents and other resources , linked by hyperlinks and URIs.
The web browser then initiates a series of background communication messages to fetch and display the requested page. In the s, using a browser to view web pages—and to move from one web page to another through hyperlinks—came to be known as 'browsing,' 'web surfing' after channel surfing , or 'navigating the Web'.
Early studies of this new behaviour investigated user patterns in using web browsers.
One study, for example, found five user patterns: exploratory surfing, window surfing, evolved surfing, bounded navigation and targeted navigation. The browser resolves the server name of the URL www. This lookup returns an IP address such as