Celsius a Fahrenheit

import java.util.Scanner;

public class Main {
    public static void main(String[] args){

        System.out.println("Conversión de temperatura");
        System.out.println("ºC (grados Celsius) a ªF (grados Fahrenheit)");

        Scanner scanner = new Scanner(System.in);//solicta la temperatura ºC
        System.out.print("Ingrese la temperatura (ºC) = ");

        double tGC = scanner.nextDouble();//lee la temperatura ºC
        double tGF = (tGC*1.8)+32;//realiza conversion a ºF
        System.out.println("Temperatura Grados Fahrenheit = "+tGF + "ºF");
        long tGFAprox = Math.round(tGF); // aproxima al entero mas cercano
        long tGFAproxCasting = (int)tGFAprox;//aplicando casting

        System.out.println("Temperatura Grados Fahrenheit Aprox.= "+tGFAproxCasting + "ºF");


    }
}