import static java.lang.System.out, while (false)
import static java.lang.System.out; public class hello { public static void main(String[] args) { boolean bool = false; while (false) //这里如果直接换成while (false) 编译时提示error: unreachable statement { out.println("work is like a capricious lover..."); //这里只用了out.println,而不是System.out.println; 原因是开头的import } out.println("no matter what, I'll run."); } }