How to make invalid choice appear when you enter a wrong letter in Full Payment and Installment

Question

import java.util.*;
public class DecisionStructureSetA{
public static void main(String [] args){
String choice ;
double fee = 45000,totalFee,totFee, monthlyFee, quarterlyFee;
Scanner scan = new Scanner(System.in);

System.out.println("*** TUITION FEE SIMULATION***");
System.out.println("[F] Full Paymaent");
System.out.println("[I] Installment");
System.out.print("Enter choice: ");
choice = scan.next();

switch(choice){
case "F": case "f":
System.out.println("***FULL PAYMENT***");
System.out.println("[1] Cash");
System.out.println("[2] Cheque");
System.out.print("Enter Choice: ");
choice = scan.next();

switch(choice){

case "1":
System.out.println("Thanks for paying in cash!");
totalFee = fee * .10;
totFee = fee - totalFee;
System.out.println("Your tution fee is:" + totFee);
break;

case "2":
System.out.println("Your cheque payment would be clear in three days!");
break;
default:
System.out.print("Invalid

Answer 1

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