[Ch15b] Trying to get a reasonable example of simultaneous reads and write (7b93e0d0) · Commits · examples / Head First Java 3rd Edition

src/main/java/ch15/ryanmonica/RyanAndMonicaStatementTest.java

+10 −4

Changes for src/main/java/ch15/ryanmonica/RyanAndMonicaStatementTest.java: 10 added lines, 4 removed lines.
Original line number	Diff line number	Diff line
		@@ -9,11 +9,11 @@ import java.util.concurrent.TimeUnit;
		public class RyanAndMonicaStatementTest {
		public static void main(String[] args) throws InterruptedException {
		BankAccountStatement account = new BankAccountStatement();
		RyanAndMonicaStatementJob ryan = new RyanAndMonicaStatementJob("Ryan", account, 50);
		RyanAndMonicaStatementJob monica = new RyanAndMonicaStatementJob("Monica", account, 100);
		RyanAndMonicaStatementJob ryan = new RyanAndMonicaStatementJob("Ryan", account, 5);
		// RyanAndMonicaStatementJob monica = new RyanAndMonicaStatementJob("Monica", account, 100);
		ExecutorService executor = Executors.newFixedThreadPool(4);
		executor.execute(ryan);
		executor.execute(monica);
		// executor.execute(monica);
		executor.execute(new Accountant(account));
		executor.execute(new Accountant(account));
		executor.shutdown();
		@@ -33,8 +33,10 @@ class RyanAndMonicaStatementJob implements Runnable {
		}

		public void run() {
		for (int i = 0; i < 20; i++) {
		goShopping(amountToSpend);
		}
		}

		private void goShopping(int amount) {
		if (account.getBalance() >= amount) {
		@@ -57,8 +59,12 @@ class Accountant implements Runnable {
		@Override
		public void run() {
		for (int i = 0; i < 10; i++) {
		System.out.println(account.getStatement());
		List<Transaction> statement = account.getStatement();
		for (Transaction transaction : statement) {
		System.out.println(transaction);
		}
		}
		System.out.println("end");
		}
		}