填空题

通过实现Runnable接口创建线程，请在画线处加入正确的代码完成此程序 【9】 。 public class ThreadTest { public static void main(String args[ ] { Thread t1 = new Thread(new Hello() Thread t2 = new Thread(new Hello() ___________; t2.start(); } } class Hello implements Runnable { int i; public void run() { while (true) { System.out.println("Hello"+i++ if(i==5) break; } } }