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!");
}
}