[Sugestão] desafio de Conversor Temperatura

import java.util.Scanner;

public interface ConversorTemperatura {
    double celsiusParaFahrenheit(double celsius);
    double fahrenheitParaCelsius(double fahrenheit);
}

class ConversorTemperaturaPadrao implements ConversorTemperatura {

    @Override
    public double celsiusParaFahrenheit(double celsius) {
        return (celsius * 9/5) + 32;
    }

    @Override
    public double fahrenheitParaCelsius(double fahrenheit) {
        return (fahrenheit - 32) * 5/9;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("Digite a temperatura em Celsius: ");
        double celsius = scanner.nextDouble();
        ConversorTemperaturaPadrao conversor = new ConversorTemperaturaPadrao();
        System.out.println(celsius + "°C em Fahrenheit: " + conversor.celsiusParaFahrenheit(celsius));

        System.out.print("Digite a temperatura em Fahrenheit: ");
        double fahrenheit = scanner.nextDouble();
        System.out.println(fahrenheit + "°F em Celsius: " + conversor.fahrenheitParaCelsius(fahrenheit));
    }
}