手写ArrayList

1，假设机器有N个CPU，那么对于CPU（计算）密集型的任务，应该设置线程数为N+1；2，对于IO密集型的任务，应该设置线程数为2N；参考：线程池大小设置

ExecutorService接口有多个实现类可用于创建不同的线程池，如表所示是5种常用的线程池；1，ExecutorService pool = Executors.newCachedThreadPool();2，ExecutorService pool = Executors.newFixedThreadPool(10);3，ScheduledExecutorService pool = Executors.newScheduledThreadPool(2);4，ExecutorService

1，多线程顺序执行**join()和newSingleThreadExecutor()** public static void main(String[] args) {// try {// thread1.start();// //main线程必须等待join线程执行完毕// thread1.join...

ThreadPoolExecutor原理分析先看一下ThreadPoolExecutor构造器方法（参数最多的那个）public ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveT...