perkalian uang

import javax.swing.JOptionPane;

class uang
{

public static void main (String [] args)
    {
String bulat1;
int bulat;

int conver;
bulat1=JOptionPane.showInputDialog("Masukan Rp");
bulat=Integer.parseInt(bulat1);

 conver=bulat*500;

JOptionPane.showMessageDialog(null,"Hasil conversi "+conver);



}
}