import javax.swing.*; public class Assignment3 { public static void main(String[] args) { String book = JOptionPane.showInputDialog("Enter Book Cost"); boolean ship = false; int a = JOptionPane.showConfirmDialog(null,"Are you shipping the book?","Shipping",JOptionPane.YES_NO_OPTION); if (a==0){ship= true;} String type = JOptionPane.showInputDialog("What type of customer are you?\n st=student g=gold\n s=silver f=faculty\n o=ordinary"); double cost = Double.parseDouble(book); double result = Bill.total ( type, cost, ship); JOptionPane.showMessageDialog(null, "Your book Total is"+" "+"$"+result ); } }