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import java.util.ArrayList; import java.util.stream.Collectors; import java.util.stream.DoubleStream; class Polynomial { // --- Required instance variables as mentioned in statement ArrayList poly; int degree; // - All other methods specified in question --- // -- Default constructor public Polynomial0{ this.poly = new ArrayList>(10); // -- ArrayList capacity to 10 this.degree = 0; // --- initialize degree to 0 } // - Constructor with parameters public Polynomial(double[] aPoly, int n){ this.poly = new ArrayList(n+1); // --- ArrayList poly capacity to n+1 degree = n; // --- initialize degree to n I| -- copying elements of array aPoly into ArrayList object poly poly = DoubleStream.of(aPoly).boxed(.collect(Collectors.toCollection(ArrayList:new)); } // --- getDegree method that returns value of degree public int getDegree() { return degree; } // --- addTerm method public void addTerm(double coefficient){ /| -- Inserting coefficient in poly poly.add(coefficient); } // updateTerm that accepts a newCoef of type double & also its power --- public double update Term(double newCoef, int pow){ return Math.pow(newCoef, pow); } } (9) Class (static) method add having two parameters p1 and p2of type Polynomial to add two polynomial expressions and return the result as an object of type Polynomial. (10) Instance method isEqual that accepts a parameter p2 of type Polynomial. The method will return true, if p2 is equal to "this object", else it will return false. Two polynomials are equal, if both have the same degree and contain same values of coefficients. (11) Method toString to return string equivalent of the polynomial. EX: If the polynomial is 1.2 x? + 2.1 x + 0.5, then the method will return 1.2 x^2 + 2.1 x + 0.5 as a string. Note that coefficients can be 0 or negative also.

import java.util.ArrayList; import java.util.stream.Collectors; import java.util.stream.DoubleStream; class Polynomial { // --- Required instance variables as mentioned in statement ArrayList poly; int degree; // - All other methods specified in question --- // -- Default constructor public Polynomial0{ this.poly = new ArrayList>(10); // -- ArrayList capacity to 10 this.degree = 0; // --- initialize degree to 0 } // - Constructor with parameters public Polynomial(double[] aPoly, int n){ this.poly = new ArrayList(n+1); // --- ArrayList poly capacity to n+1 degree = n; // --- initialize degree to n I| -- copying elements of array aPoly into ArrayList object poly poly = DoubleStream.of(aPoly).boxed(.collect(Collectors.toCollection(ArrayList:new)); } // --- getDegree method that returns value of degree public int getDegree() { return degree; } // --- addTerm method public void addTerm(double coefficient){ /| -- Inserting coefficient in poly poly.add(coefficient); } // updateTerm that accepts a newCoef of type double & also its power --- public double update Term(double newCoef, int pow){ return Math.pow(newCoef, pow); } } (9) Class (static) method add having two parameters p1 and p2of type Polynomial to add two polynomial expressions and return the result as an object of type Polynomial. (10) Instance method isEqual that accepts a parameter p2 of type Polynomial. The method will return true, if p2 is equal to "this object", else it will return false. Two polynomials are equal, if both have the same degree and contain same values of coefficients. (11) Method toString to return string equivalent of the polynomial. EX: If the polynomial is 1.2 x? + 2.1 x + 0.5, then the method will return 1.2 x^2 + 2.1 x + 0.5 as a string. Note that coefficients can be 0 or negative also.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Data Structure

 

Add three methods to the following class

import java.util.ArrayList; import java.util.stream.Collectors; import java.util.stream.DoubleStream; class Polynomial { // --- Required instance variables as mentioned in statement ArrayList<Double> poly; int degree; // - All other methods specified in question --- // -- Default constructor public Polynomial0{ this.poly = new ArrayList>(10); // -- ArrayList capacity to 10 this.degree = 0; // --- initialize degree to 0 } // - Constructor with parameters public Polynomial(double[] aPoly, int n){ this.poly = new ArrayList(n+1); // --- ArrayList poly capacity to n+1 degree = n; // --- initialize degree to n I| -- copying elements of array aPoly into ArrayList object poly poly = DoubleStream.of(aPoly).boxed(.collect(Collectors.toCollection(ArrayList:new)); } // --- getDegree method that returns value of degree public int getDegree() { return degree; } // --- addTerm method public void addTerm(double coefficient){ /| -- Inserting coefficient in poly poly.add(coefficient); } // updateTerm that accepts a newCoef of type double & also its power --- public double update Term(double newCoef, int pow){ return Math.pow(newCoef, pow); } }
Transcribed Image Text:import java.util.ArrayList; import java.util.stream.Collectors; import java.util.stream.DoubleStream; class Polynomial { // --- Required instance variables as mentioned in statement ArrayList<Double> poly; int degree; // - All other methods specified in question --- // -- Default constructor public Polynomial0{ this.poly = new ArrayList>(10); // -- ArrayList capacity to 10 this.degree = 0; // --- initialize degree to 0 } // - Constructor with parameters public Polynomial(double[] aPoly, int n){ this.poly = new ArrayList(n+1); // --- ArrayList poly capacity to n+1 degree = n; // --- initialize degree to n I| -- copying elements of array aPoly into ArrayList object poly poly = DoubleStream.of(aPoly).boxed(.collect(Collectors.toCollection(ArrayList:new)); } // --- getDegree method that returns value of degree public int getDegree() { return degree; } // --- addTerm method public void addTerm(double coefficient){ /| -- Inserting coefficient in poly poly.add(coefficient); } // updateTerm that accepts a newCoef of type double & also its power --- public double update Term(double newCoef, int pow){ return Math.pow(newCoef, pow); } }
(9) Class (static) method add having two parameters p1 and p2of type Polynomial to add two polynomial expressions and return the result as an object of type Polynomial. (10) Instance method isEqual that accepts a parameter p2 of type Polynomial. The method will return true, if p2 is equal to "this object", else it will return false. Two polynomials are equal, if both have the same degree and contain same values of coefficients. (11) Method toString to return string equivalent of the polynomial. EX: If the polynomial is 1.2 x? + 2.1 x + 0.5, then the method will return 1.2 x^2 + 2.1 x + 0.5 as a string. Note that coefficients can be 0 or negative also.
Transcribed Image Text:(9) Class (static) method add having two parameters p1 and p2of type Polynomial to add two polynomial expressions and return the result as an object of type Polynomial. (10) Instance method isEqual that accepts a parameter p2 of type Polynomial. The method will return true, if p2 is equal to "this object", else it will return false. Two polynomials are equal, if both have the same degree and contain same values of coefficients. (11) Method toString to return string equivalent of the polynomial. EX: If the polynomial is 1.2 x? + 2.1 x + 0.5, then the method will return 1.2 x^2 + 2.1 x + 0.5 as a string. Note that coefficients can be 0 or negative also.
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