2021.11.22,内容:泛型。

本文介绍了Java编程中关于泛型的实例,展示了如何在Table, Room, House和Particle类中使用类型参数,并通过代码展示了获取和打印这些类的类型参数的过程。

public class Table {
}
public class Room {
}
public class House {
}
public class Particle<POSITION, MOMENTUM> {
}
public class Main {
public static void main(String[] args) {
List

tableList = new ArrayList
();
Map<Room, Table> maps = new HashMap<Room, Table>();
House house = new House();
Particle<Long, Double> particle = new Particle<Long, Double>();
System.out.println(Arrays.toString(tableList.getClass().getTypeParameters()));
System.out.println(Arrays.toString(maps.getClass().getTypeParameters()));
System.out.println(Arrays.toString(house.getClass().getTypeParameters()));
System.out.println(Arrays.toString(particle.getClass().getTypeParameters()));
}
}
/** output
[E]
[K, V]
[Q]
[POSITION, MOMENTUM]
*/

作者:于晓飞93
链接:https://www.jianshu.com/p/4caf2567f91d
來源:简书
简书著作权归作者所有,任何形式的转载都请联系作者获得授权并注明出处。

JAR export finished with warnings. See details for additional information. Exported with compile warnings: KuCun2/src/main/java/com/kucun/DemoApplication.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/Config/CustomUserDetailsService.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/Config/Role/RoleConverter.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/Config/user/CustomUserDetails.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/Service/AppService.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/Service/DingdanService.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/Service/DynamicRepositoryService.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/controller/DingdanController.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/controller/UserController.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/controller/AppController.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/controller/ErrorConroller.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Mupi.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Chanpin_zujian.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Dingdan.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Dingdan_chanpin.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Kucun.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/User.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Chanpin.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Caizhi.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Zujian.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/Bancai.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/data/entity/DTO/EntityBasisSerializer.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/DingdanRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/UserRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/CaizhiRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/DingdanChanpinRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/KucunRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/MupiRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/ZujianRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/DingdanChanpinZujianRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/ChanpinZujianRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/JinhuoRepository.java Exported with compile warnings: KuCun2/src/main/java/com/kucun/dataDo/BancaiRepository.java
最新发布
06-21
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值