Tag Archives: java

Fibonacci Sequence Code and Animation Explained

The Fibonacci Sequence is one of the classic recursive algorithms that you learn in computer science. Mathematically, the fibonacci sequence looks like this f(x) = f(x-1) + f(x-2)  and base values of either f0 =0 and f1=1 The Java Code Download the Java Code [crayon-616c29f92995b613396342/] The Python Code Download the Python Code [crayon-616c29f92996b362179138/] Fibonnacci Recursion … Continue reading Fibonacci Sequence Code and Animation Explained →

5 Tips for the AP Computer Science A Exam

Tip 1  : Floating Point Error! If you are asked to compare doubles with either “==” or “!=” the answer is probably “Floating point error”!   (demo of floating point error in Java)   Tip 2 : Constructors are not inherited! The code below fails because constructors are not inherited! public class SuperClass{ } public class … Continue reading 5 Tips for the AP Computer Science A Exam →

Passing by Value vs. by Reference Visual Explanation

    When writing software code, you will spend a lot of time defining, reading and changing variables. Using a variable means you use a descriptive word in your code which holds some information (a number, some text, an object, etc.). This descriptive word is the “title” of the stored information. For example: [crayon-616c29f92a4e7167303968/] Variables … Continue reading Passing by Value vs. by Reference Visual Explanation →