Web_Technology - Assignment 3 -- Solved

Introduction to Web Technology Spring  

 Assignment specification: 

There are 5 assignment questions.

 

Question 1. (2%) Create a webpage Question1.html. Initially, the web page should display 10​ buttons (and no message) exactly as follow:​    

 

  

 

When, for example, the button number 0 is clicked, the web page should display the following message under the buttons: You have entered zero​  

When, for example, the button number 8 is clicked next, the message will become: You​ have entered zero-eight

When, for example, the button number 5 is clicked next, the message will become: You​ have entered zero-eight-five

When, for example, the button number 1 is clicked next, the message will become: You​ have entered zero-eight-five-one 

 

And all the buttons work in this similar manner.                          

Question 2. (2%). Create a webpage Question2.html. The web page should display 2 buttons “Start Animation” and “Stop Animation”. Initially, there is no picture shown.

 

Whenever the button “Start Animation” is clicked, the web page displays a picture of a frog and a picture of a lion alternately​ every half a second.​ (For example, frog image, half a second later, lion image, half a second later, frog image, half a second later, lion image…)

 

Whenever the button “Stop Animation” is clicked, then the web page stops the animation.

Whatever the picture is currently displayed will stay there on the page.

 

Question 3 (2%). Create a webpage Question3.html. Prepare 5 images: a frog, a table, a chair, a phone and a car. Use these 5 images to implement a game called “Click-a-frog​  ” as follows.​      

 

On the web site, there is a button “Start frog game”. Whenever the user clicks the button “Start frog game”:

 

●     A message appears under the button saying “Your score is 0​            ”;​

 

●     Under the score message, every​ half a second, ​one of the 5 images appears randomly​ ,​ the image height should be 150 pixels;

 

●     When the user clicks the frog​ image, then the user wins​ 1 point,​ and the score message should be updated accordingly;

 

●     When the user clicks other images, then the user ​loses 1 point,​ and the score message should be updated accordingly (the score can become negative number if the user loses too much);

 

●     When the score reaches 5, then the user wins the game and the game stops (images stop changing), the score message should display “Your​ score is 5. Game over - 

You win!”​

 

●     When the score goes down to -5, then the user loses the game and the game stops (images stop changing), the score message should display “Your​ score is -5. Game over - You lose!”​

 

The user can click the button “Start frog game” to play the game again and the score should be reset to 0.

 

 

Question 4.  (2%) Given the following XML code.​ 

Modify this code to add internal DTD​ .​  

Save your solution into the file Question4.xml.

<?xml version="1.0"?> 

<audit campus="Woolloomooloo" year="2000" session="A"> 

  <subject sid="0769642"> 

    <code>MATH101</code> 

    <title>Calculus</title> 

    <statistics> 

      <enrol>170</enrol> 

      <withdrawn>31</withdrawn> 

    </statistics> 

  </subject> 

  <subject sid="1734231"> 

    <code>MATH234</code> 

    <title>Abstract Algebra</title> 

    <statistics> 

      <enrol>40</enrol> 

      <withdrawn>15</withdrawn> 

    </statistics> 

  </subject> 

</audit> 
 

Question 5. ​ (2​ %)  Given the following XML code.​ 

Your task is to write the corresponding XSD code and save it into the file Question5.xsd.

<?xml version="1.0"?> 

<exam eid="10007629P"> 

  <contestant cid="00025142"> 

    <score>156</score> 

    <band>C</band> 

    <digitalSignature>a720cf8e23bc1256bce2</digitalSignature> 

  </contestant> 

  <contestant cid="00028906"> 

    <score>290</score> 

    <band>A</band> 

    <digitalSignature>7629acbf23be2c1256bc</digitalSignature> 

  </contestant> 

</exam>