Java-Initialization
摘要：
1 package interfaces.music; 2 abstract class Base{ 3 Base(){ 4 print(); 5 } 6 public abstract void print(); 7 } 8 class Derived extends Base{ 9 privat 阅读全文
posted @ 2019-11-20 11:46 Qiav 阅读(321) 评论(0) 推荐(0) 编辑