[Ch15] Creating a simpler set of examples to show the unpreditable run order. (97a3ca10) · Commits · examples / Head First Java 3rd Edition

src/main/java/ch15/MyRunnable.java

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Changes for src/main/java/ch15/MyRunnable.java: 0 added lines, 1 removed line.
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		package ch15;

		import java.util.concurrent.Executor;
		import java.util.concurrent.ExecutorService;
		import java.util.concurrent.Executors;

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Changes for src/main/java/ch15/UnpredictableRunOrder.java: 40 added lines, 0 removed lines.
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		package ch15;

		import java.util.concurrent.ExecutorService;
		import java.util.concurrent.Executors;

		public class UnpredictableRunOrder {

		}

		class RunWithThread {
		public static void main (String[] args) {
		for (int i = 0; i < 20; i++) {
		runThread();
		}
		}

		private static void runThread() {
		Thread myThread = new Thread(() -> System.out.println("top o’ the stack"));
		myThread.start();
		System.out.println("back in main");
		}
		}

		class RunWithExecutor {
		public static void main (String[] args) {
		ExecutorService executor = Executors.newSingleThreadExecutor();
		for (int i = 0; i < 100; i++) {
		executeRunnable(executor);
		}

		executor.shutdown();
		}

		private static void executeRunnable(ExecutorService executor) {
		executor.execute(() -> System.out.println("top o’ the stack"));

		System.out.println("back in main");
		}
		}