Program Untuk Menghitug Resistor Seri Dan Pararel Di Java

/*===============================================================
File : Resisitor Seri Pararel
Programmer : Jaya Harry Sinaga
Dekskripsi : Menghitung Resistor Seri Dan Pararel
===============================================================*/

import javax.swing.JOptionPane;
class tugasno6ukurseripararelresisitor 




{
public static void main(String[] args) 
{
String R1s;
Double R1;
String R2s;
Double R2;
String R3s;
Double R3;



Double seri;
Double pararel;


Double hasilseri;
Double hasilpararel;


R1s = JOptionPane.showInputDialog("Masukkan R1");
R1  = Double.parseDouble(R1s);
R2s = JOptionPane.showInputDialog("Masukkan R2");
R2  = Double.parseDouble(R2s);
R3s = JOptionPane.showInputDialog("Masukkan R3");
R3  = Double.parseDouble(R3s);


hasilseri       = R1+R2+R3;
hasilpararel = 1/R1+1/R2+1/R3;


JOptionPane.showMessageDialog(null," Nilai Serinya =" +hasilseri+ "n Nilai Pararelnya =" +hasilpararel);


}
}