EBK BIG JAVA: EARLY OBJECTS, INTERACTIV
EBK BIG JAVA: EARLY OBJECTS, INTERACTIV
6th Edition
ISBN: 8220102010314
Author: Horstmann
Publisher: YUZU
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Chapter 13, Problem 27PE
Program Plan Intro

Recursive computation of Fibonacci numbers

Program plan:

Filename: “FastFibComputer.java”

This program file is used to define a class “FastFibComputer”. In the code,

  • Define a class “FastFibComputer”.
    • Declare class member array list“knownValues”.
    • Define a constructor “FastFibComputer()”.
      • Initialize the “knownValues”.
    • Define a method “fib()”.
      • If “n” is less than array list and the value accepted is not null.
        • Return the value.
          • Call the method “fib()”recursively
          • Iterate a “while” loop.
            • Add “null” to array list.
          • Feed values to “knownValues”.
          • Return the value of “r”.

Filename: “FastFibComputerDemo.java”

This program file is used to define a class “FastFibComputerDemo”. In the code,

  • Define a class “FastFibComputerDemo”.
    • Define a method “main()”.
      • Create the object “ffc” of class “FastFibComputer”.
      • Call the method “fib()” and print the value.
      • Print the expected result.
      • Call the method “fib()” and print the value.
      • Print the expected result.

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