(13).下列程序中构造了一个 SET并且调用其方法 add（），输出结果是 ( 1 )
public class A{
public int hashCode（）{return 1；}
public Boolean equals（Object b）{return true}
public static void main（String args[]）{ Set set=new HashSet（）；
set.add(new A());
set.add(new A());
set.add(new A());
System.out.println(set.size());
}
}
(14).下列程序的运行结果是 (26)
class A{
class Dog{
private String name;
private int age;
public int step;
Dog(String s,int a)
{
name=s;
age=a;
step=0;
}
public void run(Dog fast)
{
fast.step++;
}
}
public static void main (String args[])
{
a=new A();
Dog d=a.new Dog("Tom",3);
d.step=25;
d.run(d);
System.out.println(d.step);
}
}
