KOMBINASI 3 Input (BufferedReader,Scanner,JOption)

import javax.swing.JOptionPane;
import java.util.Scanner;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
 public static void main(String[] args){
//scanner
                Scanner input = new Scanner (System.in);
                System.out.println("First Number : ");
                String fn = input.nextLine();
//Buffered Reader
                BufferedReader dataIn = new BufferedReader(new InputStreamReader(System.in));
                String sn = "";
                System.out.print("Second Number : ");
                try {
                    sn = dataIn.readLine();
                }
                catch(IOException e) {
                    System.out.println("Error!");
                }     
//JOptionPane
                String tn = JOptionPane.showInputDialog("Third Number : ");
               
                int n1 = Integer.parseInt(fn);
                int n2 = Integer.parseInt(sn);
                int n3 = Integer.parseInt(tn);
               
                int hasil = (n1*n2)/n3;
               
                JOptionPane.showMessageDialog(null, "Jawaban dari ( " +fn +" x " +sn +" ) : " +tn +" = " +hasil,
                        "JAWABAN", JOptionPane.PLAIN_MESSAGE);
    }
Selamat mencoba :)
#maaf gambarnya belum tak posting :D