coding java switch case "Suhu"

package suhu;
import java.util.Scanner;
public class Suhu
{
    private static int suhu;
    public static void main(String[] args)
    {
    Scanner masuk = new Scanner(System.in);
    int pilih;
    float nilai;
    float CF, CR;
    float FC, FR;
    float RF, RC;

    System.out.println("1) Celcius");
    System.out.println("2) Fahrenheit");
    System.out.println("3) Reamur");

    System.out.print("Pilih jenis suhu: ");
    pilih=masuk.nextInt();
   
    System.out.print("Masukkan nilai suhu: ");
    nilai=masuk.nextInt();

    switch(pilih)
    {
    case 1:
        CF = (nilai * 9/5) + 32;
        CR = nilai * 4/5;
        System.out.println("Konversi ke suhu Fahrenheit: " + CF);
        System.out.println("Konversi ke suhu Reamur: " + CR);
        break;
    case 2:
        FC = (nilai - 32) * 5/9;
        FR = (nilai - 32) * 4/9;
        System.out.println("Konversi ke suhu Celcius: " + FC);
        System.out.println("Konversi ke suhu Reamur: " + FR);
        break;
    case 3:
        RF = (nilai * 9/4) + 32;
        RC = nilai * 5/4;
        System.out.println("Konversi ke suhu Fahrenheit: " + RF);
        System.out.println("Konversi ke suhu Celcius: " + RC);
        break;
    default:
        System.out.println("Pilihan anda tidak tersedia");
        break;
   
}
    }
   
}