java program Add a divide method to the following program to take another Fraction as the parameter and return a new Fraction that is the division of current Fraction and the Fraction in the parameter. (public Fraction divide(Fraction f)). - Add scaleup and scaledown methods to the Fraction class. The scaleup method will take a factor as the parameter and multiply the numerator by the factor. The scaledown method will take a factor as the parameter and multiply the denominator by the factor. - Add a scale method that will have two parameters: factor and flag. The flag is boolean. If flag is true, then scale up the fraction; otherwise scale down the fraction. - Both scaledown and scale methods must check if the factor is 0. If it is 0, a warning message is printed out and no scaling is operated. - Add two more constructors. One of the constructors will have no parameters; it initializes the fraction to 0/1. The other constructor will have one parameter, representing the numerator of the fraction; the denominator of the fraction will be 1. - Write a program named FractionScale that prompts the user of a fraction and a scale factor. Here is what the user will see on the screen: This program performs the scaling operations on a fraction. Enter a fraction: 3/7 Scale up or down (1: up, 0: down): 1 Enter a scale factor: 2 Output: Scaled fraction is: 6/7 You can assume that the user always enters two integers separated by a slash (/) for the faction. However, the user may enter any number of spaces before and after each integer. Code: public class Fraction { // Instance variables private int numerator; // Numerator of fraction private int denominator; // Denominator of fraction // Constructors public Fraction(int num, int denom) { numerator = num; denominator = denom; } // Instance methods public int getNumerator() { return numerator; } public int getDenominator() { return denominator; } public Fraction add(Fraction f) { int num = numerator * f.denominator + f.numerator * denominator; int denom = denominator * f.denominator; return new Fraction(num, denom) } }

java program Add a divide method to the following program to take another Fraction as the parameter and return a new Fraction that is the division of current Fraction and the Fraction in the parameter. (public Fraction divide(Fraction f)). - Add scaleup and scaledown methods to the Fraction class. The scaleup method will take a factor as the parameter and multiply the numerator by the factor. The scaledown method will take a factor as the parameter and multiply the denominator by the factor. - Add a scale method that will have two parameters: factor and flag. The flag is boolean. If flag is true, then scale up the fraction; otherwise scale down the fraction. - Both scaledown and scale methods must check if the factor is 0. If it is 0, a warning message is printed out and no scaling is operated. - Add two more constructors. One of the constructors will have no parameters; it initializes the fraction to 0/1. The other constructor will have one parameter, representing the numerator of the fraction; the denominator of the fraction will be 1. - Write a program named FractionScale that prompts the user of a fraction and a scale factor. Here is what the user will see on the screen: This program performs the scaling operations on a fraction. Enter a fraction: 3/7 Scale up or down (1: up, 0: down): 1 Enter a scale factor: 2 Output: Scaled fraction is: 6/7 You can assume that the user always enters two integers separated by a slash (/) for the faction. However, the user may enter any number of spaces before and after each integer. Code: public class Fraction { // Instance variables private int numerator; // Numerator of fraction private int denominator; // Denominator of fraction // Constructors public Fraction(int num, int denom) { numerator = num; denominator = denom; } // Instance methods public int getNumerator() { return numerator; } public int getDenominator() { return denominator; } public Fraction add(Fraction f) { int num = numerator * f.denominator + f.numerator * denominator; int denom = denominator * f.denominator; return new Fraction(num, denom) } }

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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Question

java program

Add a divide method to the following program to take another Fraction as the parameter and return a new Fraction that is the division of current Fraction and the Fraction in the parameter. (public Fraction divide(Fraction f)).

- Add scaleup and scaledown methods to the Fraction class. The scaleup method will take a factor as the parameter and multiply the numerator by the factor. The scaledown method will take a factor as the parameter and multiply the denominator by the factor.

- Add a scale method that will have two parameters: factor and flag. The flag is boolean. If flag is true, then scale up the fraction; otherwise scale down the fraction.

- Both scaledown and scale methods must check if the factor is 0. If it is 0, a warning message is printed out and no scaling is operated.

- Add two more constructors. One of the constructors will have no parameters; it initializes the fraction to 0/1. The other constructor will have one parameter, representing the

numerator of the fraction; the denominator of the fraction will be 1.

- Write a program named

FractionScale that prompts the user of a fraction and a scale

factor. Here is what the user will see on the screen:

This program performs the scaling operations on a fraction.

Enter a fraction: 3/7

Scale up or down (1: up, 0: down): 1

Enter a scale factor: 2

Output:

Scaled fraction is: 6/7

You can assume that the user always enters two integers separated by a slash (/) for the faction. However, the user may enter any number of spaces before and after each integer.

Code:

public class Fraction {

// Instance variables

private int numerator; // Numerator of fraction

private int denominator; // Denominator of fraction

// Constructors

public Fraction(int num, int denom) {

numerator = num;

denominator = denom;

}

// Instance methods

public int getNumerator() {

return numerator;

}

public int getDenominator() {

return denominator;

}

public Fraction add(Fraction f) {

int num = numerator * f.denominator + f.numerator * denominator;

int denom = denominator * f.denominator;

return new Fraction(num, denom)

}

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