Add another public method dblValue() to the Fraction class which returns the double precision approximation value of the fraction. That is, the floating point result of actually dividing numerator by denominator. N.B. this method does not do any display itself, but can be called by a client program to be used in an output statement. Eg: if a client has a fraction frac that represents 1 / 2,then a method call to frac.dblValue() should return the double number 0.5. Use the client program to test this functionality; i.e. provide an output statement to display the double value of a fraction. import java.util.ArrayList; import java.util.Scanner; //Define the class Fraction class Fraction { private int n, d; public Fraction() { //Initialize the values this.n = this.d = 0; } public Fraction(int n, int d) { //Initialize the variables this.n = n; this.d = d; } //Define the getter function getNum() that returns the numerator public int getNum() { //Returns numerator return n; } //Define the getter function getDen() that returns the denominator public int getDen() { //Returns denominator return d; } //Define the boolean function isZero() that returns 0 if numerator is 0 and denominator is not equals to zero public boolean isZero() { return(getNum() == 0 && getDen() != 0); } public boolean isequals(Object c) { Fraction f = (Fraction) c; return(Integer.compare(n,f.n))==0 && (Integer.compare(d,f.d)==0); } //Define the function getSimplifiedFraction() that returns the simplified fraction public String getSimplifiedFraction() { //Decalre the string variable result to store the result String result = ""; //if the numerator and denominator both are zero if(getNum() == 0 && getDen() == 0) //result is zero result = "0"; //if the numerator is zero and denominator is non-zero else if(isZero()) //result is zero result = "0"; //if the numerator is non-zero and denominator is zero else if(getNum() != 0 && getDen() == 0) //result is Undefined result = "Undefined"; //for a defined and non-zero fraction else { //if the remainder is zero if(getNum() % getDen() == 0) result = (getNum() / getDen()) + ""; //if the numerator and denominator both are greater than zero else if(getNum() < 0 && getDen() < 0) result = (getNum() * -1) + "/" + (getDen() * -1); //if any of them is zero else if(getNum() < 0 || getDen() < 0) { //if the numerator is greater than zero if(getNum() < 0) result = "-" + (getNum() * -1) + "/" + getDen(); // appending a sign. //if the denominator is zero else result = "-" + getNum() + "/" + (getDen() * -1); // appending a sign. } //both are non-zero else result = (getNum() + "/" + getDen()); } //return the result return result; } //Define the method display() that displays the resultant fraction public void display() { //Call and display the fraction System.out.println(getSimplifiedFraction()); } public Fraction add(Fraction rhs) { Fraction sum = new Fraction(); sum.d = d * rhs.d; sum.n = n * rhs.d + d * rhs.n; sum.simplify(); return sum; } private void simplify() { int a,b; if(Math.abs(n) > Math.abs(d)) { a = Math.abs(n); b = Math.abs(d); } else { a = Math.abs(d); b = Math.abs(n); } int r = a%b; while(r != 0) { a = b; b = r; r = a%b; } //divide numerator and denominator by b n /= b; d /= b; } } //Define the class TestFraction class TestFraction { //Define the main method public static void main(String[] args) { //Declare the variables to store the numerator and denominator String res; int num, den, num1, den1; //Declare an ArrayList to store the results ArrayList fractions = new ArrayList<>(); //Create the object for scanner class Scanner sc = new Scanner(System.in); //use the do-while loop to iterate test the conditions do { //Prompts the user to enter the numerator System.out.print("Enter the num: "); //Store the Integer part only num = Integer.parseInt(sc.nextLine().trim()); //If the numerator is less than zero if(num < 0) //Break from loop break; //Prompts the user to enter the denominator System.out.print("Enter the den: "); den = Integer.parseInt(sc.nextLine().trim()); Fraction fraction = new Fraction(num, den); System.out.print("Enter the num to compare: "); num1 = Integer.parseInt(sc.nextLine().trim()); if(num1 < 0) break; System.out.print("Enter the den to compare: "); den1 = Integer.parseInt(sc.nextLine().trim()); Fraction fraction1 = new Fraction(num1, den1); if(fraction1.isequals(fraction)) { System.out.println("\nTrue-> Second fraction is equal to First Fraction"); } else System.out.println("\nFalse-> Second fraction is not equal to First Fraction"); fractions.add(fraction); res = fraction.getSimplifiedFraction(); System.out.println("Fraction added to list as: " + res + "\n"); //result is stored in ‘res’ variable }while(res != "0"); System.out.println("\nDISPLAYING ALL FRACTIONS:\n" + "-------------------------"); for(Fraction fr : fractions) fr.display(); System.out.println(); sc.close(); Fraction f = new Fraction(4, 8); System.out.println("1st fraction: "); f.display(); Fraction fc = new Fraction(8, 24); System.out.println("2nd fraction: "); fc.display(); Fraction res1 = f.add(fc); System.out.println("Sum: "); res1.display(); } }
Add another public method dblValue() to the Fraction class which returns the double precision approximation value of the fraction. That is, the floating point result of actually dividing numerator by denominator. N.B. this method does not do any display itself, but can be called by a client program to be used in an output statement. Eg: if a client has a fraction frac that represents 1 / 2,then a method call to frac.dblValue() should return the double number 0.5.
Use the client program to test this functionality; i.e. provide an output
statement to display the double value of a fraction.
import java.util.ArrayList;
import java.util.Scanner;
//Define the class Fraction
class Fraction
{
private int n, d;
public Fraction()
{
//Initialize the values
this.n = this.d = 0;
}
public Fraction(int n, int d)
{
//Initialize the variables
this.n = n;
this.d = d;
}
//Define the getter function getNum() that returns the numerator
public int getNum()
{
//Returns numerator
return n;
}
//Define the getter function getDen() that returns the denominator
public int getDen()
{
//Returns denominator
return d;
}
//Define the boolean function isZero() that returns 0 if numerator is 0 and denominator is not equals to zero
public boolean isZero()
{
return(getNum() == 0 && getDen() != 0);
}
public boolean isequals(Object c)
{
Fraction f = (Fraction) c;
return(Integer.compare(n,f.n))==0 && (Integer.compare(d,f.d)==0);
}
//Define the function getSimplifiedFraction() that returns the simplified fraction
public String getSimplifiedFraction()
{
//Decalre the string variable result to store the result
String result = "";
//if the numerator and denominator both are zero
if(getNum() == 0 && getDen() == 0)
//result is zero
result = "0";
//if the numerator is zero and denominator is non-zero
else if(isZero())
//result is zero
result = "0";
//if the numerator is non-zero and denominator is zero
else if(getNum() != 0 && getDen() == 0)
//result is Undefined
result = "Undefined";
//for a defined and non-zero fraction
else
{
//if the remainder is zero
if(getNum() % getDen() == 0)
result = (getNum() / getDen()) + "";
//if the numerator and denominator both are greater than zero
else if(getNum() < 0 && getDen() < 0)
result = (getNum() * -1) + "/" + (getDen() * -1);
//if any of them is zero
else if(getNum() < 0 || getDen() < 0)
{
//if the numerator is greater than zero
if(getNum() < 0)
result = "-" + (getNum() * -1) + "/" + getDen(); // appending a sign.
//if the denominator is zero
else
result = "-" + getNum() + "/" + (getDen() * -1); // appending a sign.
}
//both are non-zero
else
result = (getNum() + "/" + getDen());
}
//return the result
return result;
}
//Define the method display() that displays the resultant fraction
public void display()
{
//Call and display the fraction
System.out.println(getSimplifiedFraction());
}
public Fraction add(Fraction rhs) {
Fraction sum = new Fraction();
sum.d = d * rhs.d;
sum.n = n * rhs.d + d * rhs.n;
sum.simplify();
return sum;
}
private void simplify()
{
int a,b;
if(Math.abs(n) > Math.abs(d))
{
a = Math.abs(n);
b = Math.abs(d);
}
else
{
a = Math.abs(d);
b = Math.abs(n);
}
int r = a%b;
while(r != 0)
{
a = b;
b = r;
r = a%b;
}
//divide numerator and denominator by b
n /= b;
d /= b;
}
}
//Define the class TestFraction
class TestFraction
{
//Define the main method
public static void main(String[] args)
{
//Declare the variables to store the numerator and denominator
String res;
int num, den, num1, den1;
//Declare an ArrayList to store the results
ArrayList<Fraction> fractions = new ArrayList<>();
//Create the object for scanner class
Scanner sc = new Scanner(System.in);
//use the do-while loop to iterate test the conditions
do
{
//Prompts the user to enter the numerator
System.out.print("Enter the num: ");
//Store the Integer part only
num = Integer.parseInt(sc.nextLine().trim());
//If the numerator is less than zero
if(num < 0)
//Break from loop
break;
//Prompts the user to enter the denominator
System.out.print("Enter the den: ");
den = Integer.parseInt(sc.nextLine().trim());
Fraction fraction = new Fraction(num, den);
System.out.print("Enter the num to compare: ");
num1 = Integer.parseInt(sc.nextLine().trim());
if(num1 < 0)
break;
System.out.print("Enter the den to compare: ");
den1 = Integer.parseInt(sc.nextLine().trim());
Fraction fraction1 = new Fraction(num1, den1);
if(fraction1.isequals(fraction))
{
System.out.println("\nTrue-> Second fraction is equal to First Fraction");
}
else
System.out.println("\nFalse-> Second fraction is not equal to First Fraction");
fractions.add(fraction);
res = fraction.getSimplifiedFraction();
System.out.println("Fraction added to list as: " + res + "\n"); //result is stored in ‘res’ variable
}while(res != "0");
System.out.println("\nDISPLAYING ALL FRACTIONS:\n" + "-------------------------");
for(Fraction fr : fractions)
fr.display();
System.out.println();
sc.close();
Fraction f = new Fraction(4, 8);
System.out.println("1st fraction: ");
f.display();
Fraction fc = new Fraction(8, 24);
System.out.println("2nd fraction: ");
fc.display();
Fraction res1 = f.add(fc);
System.out.println("Sum: ");
res1.display();
}
}
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