Java 9 Concurrency Cookbook - Second Edition

How to do it...

Follow these steps to implement the example:

1. Create a class named Account to simulate a bank account:

        public class Account {

2. Declare a private AtomicLong attribute named balance to store the balance of the account. In addition, declare a private LongAdder attribute named operations and a private DoubleAccumulator attribute named commission:

        private final AtomicLong balance;         private final LongAdder operations;         private final DoubleAccumulator commission;

3. Implement the constructor of the class to initialize its attributes. For the DoubleAccumulator class, the identity value is 0 and we update the actual value with the result of multiply 0.2 to the increment passed as parameter:

        public Account() {  balance = new AtomicLong(); ...