Switch Statement

TestBankAccount.java

switch (cmdletter) { case 'b': // balance System.out.println("Current balance is " + account); break; case 'd': // deposit case 'w': // withdrawal amountAsDouble = RitIo.getDouble("Amount: "); amountAsInt = (int) amountAsDouble; amountAsDouble -= amountAsInt; // 123.456 becomes 0.456 amountAsInt *= 100; // take int part as dollars (12300) amountAsDouble *= 100; // becomes 45.6 amountAsInt += (int) amountAsDouble; // becomes 12345 if (cmdletter == 'd') { account.deposit(amountAsInt); } else { account.withdraw(amountAsInt); } break;

account is of type BankAccount which offers a toString method which supports a conversion to a String for the + operator.

Note how the common part of reading an amount value for the commands ``deposit'' and ``withdrawal'' has been factorized out.

	`account` is of type `BankAccount` which offers a `toString` method which supports a conversion to a `String` for the `+` operator.
	Note how the common part of reading an amount value for the commands ``deposit'' and ``withdrawal'' has been factorized out.