瞧瞧这两个方法有啥区别呀解决方法

瞧瞧这两个方法有啥区别呀

Java code

new Thread(new Runnable(){                public void run() {                    System.out.println("你好！");                }                            }).start();            new Thread(){                public void run() {                    System.out.println("你好！");                }                            }.start();