java练习---10
![](https://images2017.cnblogs.com/blog/1236612/201710/1236612-20171029234323711-994123059.png)
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 + ": 在下 " + name + ", 芳龄" + age + ", 家住" + city ; 11 } 12 13 14 }
1 package cn.zrjh; 2 3 public class Y { 4 5 public static void main(String[] args) { 6 L p1=new L(); 7 L p2=new L(); 8 L p3=new L(); 9 L p4=new L(); 10 p1.id=100000; p1.name="罗元昊"; p1.age=19; p1.city="418"; 11 p2.id=200000; p2.name="孔宏旭"; p2.age=18; p2.city="418"; 12 p3.id=300000; p3.name="于星晔"; p3.age=19; p3.city="418"; 13 p4.id=400000; p4.name="黄浩然"; p4.age=19; p4.city="418"; 14 System.out.println(p1.introduce()); 15 System.out.println(p2.introduce()); 16 System.out.println(p3.introduce()); 17 System.out.println(p4.introduce()); 18 19 } 20 21 }