How to put GUI in joptionpane? - user-interface

Question

How to add GUI in this JOPTIONPANE?
private static final DecimalFormat df = new DecimalFormat("0.00");
public static final String[] Vehicle = { "Car","Motorcycle" };
/**
* #param args the command line arguments
*/
public static void main(String[] args) {
String userVehicleType;
String userInputHours;
String userInput;
int hoursPark;
int totalHours;
double userPayment=0;
double balance=0;
double addHours;
double totalAmount=0;
Integer ParkHours;
int newPayment;
JOptionPane.showMessageDialog( null, "Welcome to Wangsa Walk Ticket " );
do{
JFrame frame = new JFrame();
String[] choice = new String[2];
choice[0] = "Car";
choice[1] = "Motocycle";
int showOptionDialog = JOptionPane.showOptionDialog(frame.getContentPane(),"What Type of vehicle your using?","Title", 0,JOptionPane.QUESTION_MESSAGE,null,choice,null);
switch(showOptionDialog){
case 0:
userInputHours= JOptionPane.showInputDialog("how long do you park?");
hoursPark= Integer.parseInt(userInputHours);
if (hoursPark==2){
totalAmount=2;
userInput= JOptionPane.showInputDialog("Your fee is RM 2.00. "+
"Please insert your money (RM)");
userPayment= Integer.parseInt(userInput);
balance= userPayment - 2;
JOptionPane.showMessageDialog(null, " Your balance is RM " +df.format(balance));
break;
}
else if (hoursPark>2&&hoursPark!=24){
totalAmount=(hoursPark*1)+ 2;
userInput= JOptionPane.showInputDialog(" Your fee is RM "+df.format(totalAmount)+
". Please insert your money (RM)");
userPayment= Integer.parseInt(userInput);
balance= userPayment - totalAmount;
JOptionPane.showMessageDialog(null, " Your balance is RM " +df.format(balance));
break;
}
else if (hoursPark==24){
totalAmount=30;
userInput= JOptionPane.showInputDialog("Your parking fee is RM 30.00. "+
"Please insert your money (RM)");
userPayment= Integer.parseInt(userInput);
balance= userPayment-30;
JOptionPane.showMessageDialog(null, " Your balance is RM " +df.format(balance));
break;
}
case 1:
userInputHours= JOptionPane.showInputDialog("Input your parking hours");
hoursPark= Integer.parseInt(userInputHours);
if (hoursPark==1){
totalAmount=1;
userInput= JOptionPane.showInputDialog("Your fee is RM 1.00. "+
"Please insert your money (RM)");
userPayment= Integer.parseInt(userInput);
balance= userPayment - 1;
JOptionPane.showMessageDialog(null, " Your balance is RM " +df.format(balance));
break;
}
else if (hoursPark>=2){
addHours=(hoursPark-1)*0.5;
totalAmount= addHours+1;
userInput= JOptionPane.showInputDialog("Your fee is RM "+df.format(totalAmount)+
". Please insert your payment (RM)");
userPayment= Integer.parseInt(userInput);
balance= userPayment - totalAmount;
JOptionPane.showMessageDialog(null, " Your balance is RM " +df.format(balance));
break;
}
}
String Receipt = "Your parking fees is RM "+df.format(totalAmount)+". the amount you pay is RM "
+df.format(userPayment)+". Your balance is RM "+df.format(balance)+
".\n Thank you, Please come again.";
JOptionPane.showMessageDialog( null, Receipt );
String anotherpayment = JOptionPane.showInputDialog(null,
"Would you like to make another payment?\n1.Yes\n2.No",
JOptionPane.QUESTION_MESSAGE);
newPayment = Integer.parseInt(anotherpayment);
}while(newPayment==1);
System.exit(0);
}
}`