CC292 Revision Web Application Programming

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CC292 Revision Web Application Programming

• Simon M. Lucas

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Executed on Client or Server? Explain

• JSP (also explain the lifecycle of a JSP page)
• Java Applet
• CSS
• HTML
• JavaScript
• Db4o database
• Java helper classes Java Beans

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General Principles

• Explain how the Once and Once Only principle of
  good design can be applied or related to the
  following concepts
• CSS
• Databases (OO and Relational)
• JSP pages
• Java code
• JavaScript Components
• HTML web pages

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Threads

• Explain the conditions under which deadlock is
  possible, and how deadlock can be avoided.
• Outline (or write) a simple Java program to
  demonstrate this. (see demo)
• Consider the following code could the println()
  method ever be executed? Explain.
• if (x 1) if (x 2)
  System.out.println(Amazing!)

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Consider the following league table(with over
1,000 rows)Explain how you would multi-page this
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Shopping Basket

• Define a class for a Product item, and explain
  how you would store these in a Java-based (server
  side) shopping basket
• Suppose you use a HashMap to store the items.
  What effect would the following have?
• Failing to override hashcode()
• Defining hashcode to always return 1.
• Explain which type of map should be used if the
  items are to be displayed in alphabetical order.
• What scope should a Basket Bean have?