【单选题】类A及其派生类B定义如下:class A{ public int getIno(int a) { return a; }}public class B extends A{ public loat getIno(int b) { return b; } public static void main(String[]args) { A a=new A(); B b=new B(); System....
【简答题】通过实现Rmmable接口创建线程,请在下面横线处填写代码完成此程序。 public class ThreadTest { public static void main(String args []) { Thread testObj1 = new Thread (new Hello ()); Thread testObj2 = new Thread (new Hello ()); testOb...