1 package cn.zrjh; 2 3 public class L { 4 5 public int id; 6 public String name; 7 public int age; 8 public String city; 9 public String introduce() { 10 return + id + ": 我是 " + name + ", 芳龄" + age + ", 家住" + city ; 11 } 12 13 14 } 15 16 17 package cn.zrjh; 18 19 public class Y { 20 21 public static void main(String[] args) { 22 L p1=new L(); 23 L p2=new L(); 24 L p3=new L(); 25 L p4=new L(); 26 p1.id=100000; p1.name="马相露"; p1.age=19; p1.city="418"; 27 p2.id=200000; p2.name="孔宏旭"; p2.age=18; p2.city="418"; 28 p3.id=300000; p3.name="菜鸡"; p3.age=19; p3.city="418"; 29 p4.id=400000; p4.name="黄浩然"; p4.age=19; p4.city="418"; 30 System.out.println(p1.introduce()); 31 System.out.println(p2.introduce()); 32 System.out.println(p3.introduce()); 33 System.out.println(p4.introduce()); 34 35 } 36 37 }