Question

Write a Temperature class that will hold a temperature in Fahrenheit, and provide meth- ods to get the temperature in Fahrenheit, Celsius, and Kelvin. The class should have the following field: • ftemp – A double that holds a Fahrenheit temperature. The class should have the following methods: Constructor – The constructor accepts a Fahrenheit temperature (as a double) and stores it in the ftemp field. setFahrenheit – The setFahrenheit method accepts a Fahrenheit temperature (as a double) and stores it in the ftemp field. getFahrenheit – Returns the value of the ftemp field, as a Fahrenheit temperature (no conversion required). getCelsius – Returns the value of the ftemp field converted to Celsius. getKelvin – Returns the value of the ftemp field converted to Kelvin. Use the following formula to convert the Fahrenheit temperature to Celsius: Celsius = (5/9) * (Fahrenheit - 32) Use the following formula to convert the Fahrenheit temperature to Kelvin: Kelvin = ((5/9) * (Fahrenheit - 32)) + 273 Demonstrate the Temperature class by writing a separate program called TemperatureDemo that asks the user for a Fahrenheit temperature. The program should create an instance of the Temperature class, with the value entered by the user passed to the constructor. The program should then call the object’s methods to display the temperature in Celsius and Kelvin.

Answer 1

Thanks for posting the question, we are glad to help you. Here are the two classes you will need. I ran the code and its calculating the celsius and kelvin temperature accurately.

Check the screenshot at the end

thank you & please do give a thumbs up from your end !!

______________________________________________________________________________

//Write a Temperature class that will hold a temperature in Fahrenheit,
public class Temperature {

    //ftemp – A double that holds a Fahrenheit temperature.
    private double ftemp;

    //Constructor – The constructor accepts a Fahrenheit temperature (as a double)
    // and stores it in the ftemp field.
    public Temperature(double ftemp) {
        this.ftemp = ftemp;
    }

    //The setFahrenheit method accepts a Fahrenheit temperature (as a double)
    // and stores it in the ftemp field
    public void setFtemp(double ftemp) {
        this.ftemp = ftemp;
    }

    //getFahrenheit – Returns the value of the ftemp field, as a Fahrenheit
// temperature (no conversion required).
    public double getFtemp() {
        return ftemp;
    }

    //getCelsius – Returns the value of the ftemp field converted to Celsius.
    public double getCelsius() {

        return (getFtemp() - 32) * 5.0 / 9;

    }

    public double getKelvin() {
        return getCelsius() + 273.15;
    }
}

____________________________________________________________________________

import java.util.Scanner;


public class TemperatureDemo {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter a temperature in Fahrenheit: ");
        double ftemp = scanner.nextDouble();
        //The program should create an instance of the Temperature class,
        // with the value entered by the user passed to the constructor.
        Temperature thermometer = new Temperature(ftemp);

        //The program should then call the object’s methods to display the
        // temperature in Celsius and Kelvin.
        System.out.println("Temperature in Celsius : " + thermometer.getCelsius() + " deg C");
        System.out.println("Temperature in Kevin : " + thermometer.getKelvin() + " deg K");
    }
}

____________________________________________________________________________

thank you !!