import java.io.*;
import java.util.*;

class DepositAccountMain4
// Version of DepositAccountMain2 using DepositAccountB
// i.e. withdraw method can throw AccountException
{
 public static void main(String[] args) throws IOException
 {
  BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  System.out.print("Initial deposit: ");
  int sum = Integer.parseInt(in.readLine());
  System.out.print("Interest rate%: ");
  double interest = Double.parseDouble(in.readLine())/100;
  DepositAccountB acc = new DepositAccountB(sum,interest);
  char command;
  do {
      System.out.print("Command: ");
      StringTokenizer line = new StringTokenizer(in.readLine());
      command = line.nextToken().charAt(0);
      switch(command)
         {
         case 'b':
            System.out.println("Balance is "+acc.balance());
            break;
         case 'n':
            acc.update();
            System.out.println("Start month with "+acc.balance());
            break;
         case 'd':
            acc.deposit(Integer.parseInt(line.nextToken()));
            break;
         case 'w':
            try {
                 acc.withdraw(Integer.parseInt(line.nextToken()));
                }
            catch(AccountException e)
                {
                 System.out.print("Withdrawal refused: ");
                 if(e.getMessage().equals("overdraw"))
                    System.out.println("would make account overdrawn");
                 else if(e.getMessage().equals("doubleWithdraw"))
                    System.out.println(" previous withdrawal this month");
                 else
                    System.out.println();
                }
            break;
         case 'q':
            break;
         default:
            System.out.println("Invalid command");
         }
     }
  while(command!='q');
 }
}