This is what I have so far I am trying to calculate the tax as the TaxPayer's income (returned by its getIncome method) times a corporate tax rate of 21% (0.21). This is what I have so far. I also would like to save the variable in a double named tax. I am having trouble figuring out to call the TaxPayers income to multiply it by the tax rate. The code displays a Java class named `TaxPayer`, which is used to model individuals or businesses that pay taxes. Here’s a detailed explanation and transcription for an educational context:### Code Explanation:1. **Class Definition:** - `public class TaxPayer` declares a class named `TaxPayer`. - The class has four private fields: `name`, `age`, `isCorporation`, and `income`, representing the taxpayer's details.2. **Constructor:** - The constructor `public TaxPayer(String name, int age, double income, boolean isCorporation)` initializes a new instance of `TaxPayer`. - Preconditions and postconditions ensure proper initialization: - **Precondition:** The `name` must not be null or empty, and `age` must be non-negative. - **Postcondition:** The `getName()`, `getAge()`, and `getIsBusiness()` methods must return the values provided during initialization.3. **Parameters:** - `@param name`: Represents the name of the person or business. - `@param age`: Represents the individual's age (ignored if it's a business). - `@param income`: Represents the annual income. - `@param isCorporation`: Boolean indicating if the taxpayer is a business.4. **Methods:** - `public String getName()`: Returns the name of the taxpayer. - `public int getAge()`: Returns the age of the taxpayer.### Code Transcription:```javapublic class TaxPayer { private String name; private int age; private boolean isCorporation; private double income; /** * Creates a new taxpayer. * * @precondition name != null AND !name.isEmpty() AND age >= 0 * @postcondition getName()==name AND getAge()==age AND getIsBusiness()==isBusiness * * @param name the person or business' name * @param age the person's age (ignored if it is a business) * @param income the annual income * @param isCorporation true if the taxpayer is a business, false otherwise */ public TaxPayer(String name, int age, double income, boolean isCorporation) { super(); this.name = name; this.age = age; this.isCorporation = ```javapublic TaxCalculator() {}/** * Calculates a tax payer's tax assuming they are a corporation. * * @precondition payer != null AND payer.isCorporation()==true * @postcondition none * * @param payer the tax payer * @return the tax assuming the payer is a corporation; should be zero if no (or negative) income */public static final double CORPORATE_TAX_RATE = 0.21;public double tax() { return -1;}public double calculateCorporateIncomeTax(TaxPayer payer) { if (tax() <= 0) return tax(); return -1;}```### ExplanationThis code defines a class responsible for calculating the tax for corporations. Here’s a breakdown of its components:- **Class and Method Descriptions:** - **Constructor:** `public TaxCalculator()` is a default constructor for the `TaxCalculator` class. - **JavaDoc Comment:** - Provides important information about the `calculateCorporateIncomeTax` function: - **Purpose:** Calculates a taxpayer's tax, assuming they are a corporation. - **Precondition:** The taxpayer (`payer`) must not be null and must be confirmed as a corporation (`payer.isCorporation() == true`). - **Postcondition:** None specified, indicating no particular condition after execution. - **Parameters:** Takes a `TaxPayer` object named `payer`. - **Return:** Should return the tax amount assuming the payer is a corporation; expected to be zero if there's no income or if the income is negative.- **Fields and Constants:** - `CORPORATE_TAX_RATE`: A static final constant representing the corporate tax rate (21%).- **Methods:** - `public double tax()`: A method that currently returns -1, possibly as a placeholder or error condition. - `public double calculateCorporateIncomeTax(TaxPayer payer)`: - Calls the `tax()` method. - Returns `tax()` if it is less than or equal to zero, otherwise returns -1.### Code FunctionalityThe `TaxCalculator` class is designed to calculate corporate taxes using a defined corporate tax rate. However, the current implementation does not compute taxes correctly due to placeholder logic in the `calculateCorporateIncomeTax` method which returns -1 instead of a calculated value.The code requires further implementation to perform

Variables have been declared as instance variables and cannot be accessed directly. An object of the…

Answered: } * Calculates a tax payer's tax…

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...