函数接口，不需要任何东西，并且什么都不返回

JDK中是否有一个标准的函数接口，它什么也不做，什么都不返回？ 我找不到一个。 像下面这样：

@FunctionalInterface interface Action { void execute(); } 

Answer 1

如何运行：

 @FunctionalInterface public interface Runnable { /** * When an object implementing interface <code>Runnable</code> is used * to create a thread, starting the thread causes the object's * <code>run</code> method to be called in that separately executing * thread. * <p> * The general contract of the method <code>run</code> is that it may * take any action whatsoever. * * @see java.lang.Thread#run() */ public abstract void run(); }