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.