Ap Computer Science

• ETS nails students (from Trabuco Hills High) for cheating on the AP EXAM)
• Interviews with classic video game programmers (like the creator of Defender, Robotron, Space Raiders and more)
• article on programming involved in hacking Flash games such as Stick Arena

After the AP Exam

Free response solutions to 2008 exam.

PHP and MySql Programming

• PHP Video Tutorials
• MySql data types
• Get and Post forms with PHP : creating a simple log in script
• PHP and MySql Part I
• Best Practicies for Queries
• PHP and MySql part II (selecting and running queries)
• PHP and MySQL Part III (limiting SELECT with WHERE)
• 1 way encryption
• joining tables. INNER JOIN
  
  Password

Current Unit
• Grid World

Unit 3: Recursion

• #1) Try this puzzle before we tackle Recursion (This puzzle is known as the Tower of Hanoi and is the classic Computer Science example of a problem that lends itself to a recursive solution)
• #2) Recursion in Java
• #3) examples of recursion in Java
  • Interactive flow diagram of recursion of Fibonacci
  • interactive demonstration of the stack
• #4) JavaBat Recursion Problems
• NOTE: When you register for Javabat click on the preferences and choose to share your results with me . Just enter
• 1) Fibonacci Recursion Problem
• 2) String Count
  
  Password (alphanum)
• 3) Recursive Counting of the digit 8
• 4) Note: I got the idea for this asssignment from this Javabat problem. Here is our recursive version of the problem (Do not complete the one on Javabat because yours should be done recursively:

  Given a string and a non-negative int n, return a larger string that is n copies of the original string.
  
  stringTimes("Hi", 2) -> "HiHi"
  stringTimes("Hi", 3) -> "HiHiHi"
  stringTimes("Hi", 1) -> "Hi"
  

• 5) Rewrite a recursive method as an iterative one
• 6) **if time Recursively remove duplicate characters
• 7) **if time Recursive Array Problem
• Extra Credit Recursion Problems (Solve them on JavaBat to get extra credit)
  • EC #1) Summing portion of arrays
• Recursion & OOP project (Reminder about ArrayLists)
  
  Password
• Video Tutorial on Interfaces & Abstract Classes
  

Unit 3
• Sorting Algorithms
• MegeSort with a nice narrative that explains the the running of the code with examples
  • MergeSort.java
• Binary Searching, Selection sorts, and Insertion
  • Code for Insertion and Selection Sort
• Source Class for String Validation Program
  • Tutorial on event and action listeners (if you're curious)
• How the Chat Program works
• TCP Chat Program Source File

Number Systems and Bases
• binary calculator project
• hex, binary, dec calculator project
• Hexadecimal Number Project

OOP
• abstract classes

General Resources
• download eclipse (windows)
• Eclipse(tutorials, its debugger etc...)

Interesting Links
• Interview with James Gosling(founder of Java) about JavaFx
• Free UML maker
• practice converting between hex, binary and decimal numbers
• China hacked the pentagon?
• Popularity of various programming languages(based on internet queries. Yes, Java has a favorable standing!)
• List of applications written in C++

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