[Ch15] Ryan and Monica's bank account statements with thread safe collection

package ch15.ryanmonica;

import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.CopyOnWriteArrayList;

import java.util.concurrent.ExecutorService;

import java.util.concurrent.Executors;

import java.util.concurrent.TimeUnit;

  @Override

  public void run() {

    for (int i = 0; i < 10; i++) {

      System.out.println(account.getStatement());

    }

  }

}

class BankAccountStatement {

  private final List<Withdrawal> statement = new ArrayList<>();

  private final List<Withdrawal> statement = new CopyOnWriteArrayList<>();

  public BankAccountStatement() {

    statement.add(new Withdrawal("Initial Balance", 0, 100));

  public void makeWithdrawal(int amount, String name) {

    if (getBalance() >= amount) {

      System.out.println(name + " is about to withdraw");

      System.out.println(name + " woke up.");

      withdraw(name, amount);

      System.out.println(name + " completes the withdrawal");

    } else {