java - 线程池

public interface Executor {

    // 一个运行的命令将在某时　执行，
　 // 一个新的线程，或者线程池，或者　calling  
    void execute(Runnable command);
}

public abstract class AbstractExecutorService implements ExecutorService {

    protected <T> RunnableFuture<T> newTaskFor(Runnable runnable, T value) 

    protected <T> RunnableFuture<T> newTaskFor(Callable<T> callable)
        
    public Future<?> submit(Runnable task)

    public <T> Future<T> submit(Runnable task, T result)

    public <T> Future<T> submit(Callable<T> task)

    private <T> T doInvokeAny(Collection<? extends Callable<T>> tasks,
                              boolean timed, long nanos);
    public <T> T invokeAny(Collection<? extends Callable<T>> tasks);

    public <T> T invokeAny(Collection<? extends Callable<T>> tasks,
                           long timeout, TimeUnit unit);

    public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks);

    public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks,
                                         long timeout, TimeUnit unit)
    

}