Big Java Late Objects
Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Chapter 13, Problem 4PE
Program Plan Intro

Computing a string with the binary digits of a number

Program plan:

Filename: “NonNegativeInteger.java”

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

  • Define a class “NonNegativeInteger”.
    • Declare class members “number”.
    • Define a constructor “NonNegativeInteger()”.
      • Initialize the “number”.
    • Define a method “decimalToBinary()”.
      • Call the method “decimalToBinary()” recursively.
    • Define a method “decimalToBinary()”.
      • If the value of “num” is less than 2,
        • Return the string.
          • If the value of “num” is greater than or equal to 2,
            • Return the calculated value.
    • Define the method “getText()”.
      • Return the “text”.

Filename: “BinaryGenerator.java”

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

  • Define a class “BinaryGenerator”.
    • Define a method “main()”.
      • Create the object “anInt” of class “NonNegativeInteger”.
      • Call the method “decimalToBinary()” and print the value.
      • Print the expected result.
      • Feed the class “NonNegativeInteger” with value.
      • Call the method “decimalToBinary ()” and print the value.
      • Print the expected result.
      • Feed the class “NonNegativeInteger” with value.
      • Call the method “decimalToBinary ()” and print the value.
      • Print the expected result.
      • Feed the class “NonNegativeInteger” with value.
      • Call the method “decimalToBinary ()” and print the value.
      • Print the expected result.

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