扩张型心肌病超声心动图诊断具有_____，_____，_____和室间隔与左室后壁运动减弱四大特点。

以下程序的输出结果为______。
public class Person
String name;
int age;
public Person(String name, int age)
this.name = name;
this.age = age;

public static void main(String[] args)
Person c = new Person("Peter", 17);
System.out.println(c.name + " is " + c.age + " years old!");