PR Java Modul 4 yang nomer 1

import javax.swing.JOptionPane;
public class konversisuhu
{
public static void main(String[] args)
{
String input;
int celcius;
int fahreinheit,reamur;
input=JOptionPane.showInputDialog("Masukan Nilai Suhu Celciusnya");
celcius=Integer.parseInt(input);
fahreinheit =(9/5)*celcius+32;
reamur=(4/5)*celcius;
JOptionPane.showMessageDialog(null,"Konversi Derajat Celcius ke Fahreinheit adalah " +fahreinheit,"Fahreinheit",JOptionPane.PLAIN_MESSAGE);
JOptionPane.showMessageDialog(null,"Konversi Derajat Celcius ke Reamur adalah " +reamur,"Reamur",JOptionPane.PLAIN_MESSAGE);
}
}