面向对象课程

class Person{
int age;
String name;
public  void sayHello(String name,int age){
    System.out.print("年龄"+age+"姓名"+name);

}


}
public class App {
    public static void main(String[] args) throws Exception         {
    Person person=new Person();
    person.age=19;
    person.name="天空";
    person.sayHello(person.name,person.age);
    }

}