Errata

There should be a better way to pass this errata information:

In the below sentence; BankTransactionParser should be changed to BankStatementParser I believe. For your consideration.

"So far so good, but how do you decouple the BankStatementAnalyzer from the specific implementation of a BankStatementCSVParser? You need to use the interface! By introducing a new method called analyze(), which takes BankTransactionParser as an argument, you are no longer coupled to a specific implementation (see Example 2-12).
Example 2-12. Decoupling the Bank Statements Analyzer from the parser
..
public void analyze(final String fileName, final BankStatementParser bankStatementParser)
..
"

Example 2-5. Using the bank statement CSV parser.

System.out.println("Transactions in January " + selectInMonth(BankTransactions, Month.JANUARY));

BankTransactions should begin with a small B instead of capital !

Example 2-8. Processing lists of bank transactions using the BankStatementProcessor class.

final List<BankTransaction> bankTransactions = bankStatementParser.parseLinesFrom(lines);

parseLinesFrom(lines) should be changed to parseLinesFromCSV(lines).

PS - How are such basic mistakes present in the code ?

Example 3-6. Declaring a class that implements the BankTransactionFilter.

return bankTransaction.getDate().getMonth() == Month.FEBRUARY && bankTransaction.getAmount() >= 1_000);

This code won't compile. The fix is :

return (bankTransaction.getDate().getMonth() == Month.FEBRUARY) && bankTransaction.getAmount() >= 1_000;

Example 3-17. Throwing a syntax exception.

final String[] columns = line.split(",");
if (columns.length < EXPECTED_ATTRIBUTES_LENGTH) {
throw new CSVSyntaxException();
}

What is EXPECTED_ATTRIBUTES_LENGTH ? It is not there in previous sections, nor in the final code in github. So, its hard to build the code step by step and eventually match what you have in github.

To match with the github code and "Example 5-2. The Action interface" code

verify(mockAction).perform();
should changed to
verify(mockAction).execute();

The line is "final BankStatementCSVParser bankStatementParser = new BankTransactionCSVParser();" but so far I haven't made the class "BankTransactionCSVParser". When I copy paste the code it doesn't compile until I change the line to:

"final BankStatementCSVParser bankStatementParser = new BankStatementCSVParser();"

The line is "System.out.println("Transactions in January " + selectInMonth(BankTransactions, Month.JANUARY));". When I copy paste the code, it doesn't work (even if I include the code from the subsequent examples which is needed to get all the code. This is because "BankTransactions" should be "bankTransactions". When I fix it by changing to camel case to match the variable declared, it compiles.

The line "final List<BankTransaction> bankTransactions = bankStatementParser.parseLi
nesFrom(lines);" has a compile error. The method name being called is wrong, according to the class we created in the pages before. The method is actually called "parseLinesFromCVS".

It compiles when I change the line to:

"final List<BankTransaction> bankTransactions = bankStatementParser.parseLi
nesFromCVS(lines);"

There is a method execute(), which is called perform() on all the following pages. There should be consistent naming.

Multiple (4) instances of = BankTransactionCSVParser should be replaced with BankStatementCSVParser