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

Square root

Program plan:

Filename: “SquareRootComputer.java”

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

  • Import the required packages.
  • Define a class “SquareRootComputer”.
    • Define a method “main()”.
      • Define an object “in” of class “Scanner”.
      • Prompt the user to enter the number.
      • Scan for the value.
      • Print the square root of the number.
    • Define a method “squareRoot()”.
      • Call the method “squareRootGuess()” and return the value.
    • Define a method “squareRootGuess()”.
      • Define the variable “epsilon”.
      • If ”Math.abs(x-g*g)” is less than “epsilon”,
        • Return the value of “g”.
          • If the condition is not true,
            • Call the method “squareRootGuess()” recursively and return the value.

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