Algorithm Int Spell based Vietnamese lang.

SpellInt.java

import java.util.*;
import javax.swing.*;
class SpellInt {   // Class init
    public static void Spell(int n) {
        String str1, str2, str3, str4;
        str1 = "ngan";
        str2 = "tram";
        str3 = "chuc";
        str4 = "don vi";
        int x, y, j, k;
        x = n/1000;
        y = (n%1000)/100;
        j = (n%100)/10;
        k = (n%100)%10;
        String str = x + " " + str1 + " " + y + " " + str2 + " " + j + " " + str3 + " " + k + " " + str4;
       JOptionPane.showMessageDialog(null, " Cach doc so vua nhap la : " + str);
    }
    public static void main(String[] args) {
           String st = JOptionPane.showInputDialog(null, "Nhap so a = ");
           int a = Integer.parseInt(st);
    
    
            Spell(a);

    }
}