package cn.person.www;
public class person {
public int id;
public String name;
public int age;
public String city;
public String introduce() {
return "我是" + id + "号, 叫 " + name + ", 今年" + age + "岁了, 来自" + city ;
}
public person(int id,String name,int age,String city) {
this.id=id; //this关键字，表达的含义是当前对象 .表示当前对象的某个调用
this.name=name;
this.age=age;
this.city=city;
}
}
package cn.person.www;
public class Demoperson {
public static void main(String[] args) {
// TODO Auto-generated method stub
person p1=new person(001,"刘备",40,"北京");
person p2=new person(002,"关羽",37,"北京");
person p3=new person(003,"张飞",45,"北京");
person p4=new person(004,"诸葛亮",25,"北京");
System.out.println(p1.introduce());
System.out.println(p2.introduce());
System.out.println(p3.introduce());
System.out.println(p4.introduce());
}
}
