Assignment Four

This assignment is to modify Assignment Three as follows:

· Write a method

void drawBalance(Graphics2D g, BankAccount account);

that draws the Rectangle and the balance of the account and call it from the action classes.

· Write a method

boolean isInputOK(String input);

that check to make sure that the input string is either all digits or is in money format, 1 decimal place and exactly 2  digits after the decimal place like 100 or 100.00 or 250.55. Hint: use the tools (methods) indexOf and substring from the String class and isDigit from the Character class.

· Draw the balance in money format. Use the getCurrencyInstance() and format(double number) methods from the NumberFormat class. My version of Assignment Three, ATM2.java, has an example.

The assignment is due on Wednesday June 9th at class time and there will be a quiz. Hand in the usual.