Java8-Synchronized-No.02

import java.util.concurrent.ExecutorService;

import java.util.concurrent.Executors;

import java.util.stream.IntStream;

public class Synchronized2 {

    private static final int NUM_INCREMENTS = 10000;

    private static int count = 0;

    public static void main(String[] args) {

        testSyncIncrement();

    }

    private static void testSyncIncrement() {

        count = 0;

        ExecutorService executor = Executors.newFixedThreadPool(2);

        IntStream.range(0, NUM_INCREMENTS)

                .forEach(i -> executor.submit(Synchronized2::incrementSync));

        ConcurrentUtils.stop(executor);

        System.out.println(count);

    }

    private static void incrementSync() {

        synchronized (Synchronized2.class) {

            count = count + 1;

        }

    }

}
巴特西

Java8-Synchronized-No.02

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