你真的了解 lambda 吗（纠错篇）？

点击上方“朱小厮的博客”，选择“设为星标”做积极的人，而不是积极废人来源：http://uee.me/aWWS21. 用法示例：最普遍的一个例子，执行一个线程new Thread(() -> System.out.print("hello world")).start();->  我们发现它指向的是 Runnable接口@FunctionalInterfacepublic interface Runnable {    /**     * When an object implementing interface Runnable is used     * to create a thread, starting the thread causes the object's     * run method to be called in that separately executing     * thread.     *     * The general contract of the method run is that it may     * take any action whatsoever.     *     * @see     java.lang.Thread#run()     */    public abstract void run();}分析->这个箭头是lambda表达式的关键操作符->把表达式分成两截，前面是函数参数，后面是函数体 ………………………………