每日代码系列(24)---终章

 1 abstract class OutputAlphabet {
 2   public abstract void output();
 3 }
 4 class OutputEnglish extends OutputAlphabet {  
 5   public void output() {
 6     for(char c='a';c<='z';c++) {
 7       System.out.printf("%3c",c);
 8     }
 9   }
10 }
11 class ShowBoard {
12   void showMess(OutputAlphabet show) {  //参数show是OutputAlphabet类型的对象
13     show.output();
14   }
15 }
16 public class Example7_2 {
17   public static void main(String[] args) {
18     ShowBoard board=new ShowBoard();
19     board.showMess(new OutputEnglish());  //向参数传递OutputAlphabet的子类OutputEnglish的对象
20     board.showMess(new OutputAlphabet() {    //向参数传递OutputAlphabet的匿名子类的对象
21       public void output() {
22         for(char c='α';c<='ω';c++) {
23           System.out.printf("%3c",c);
24         }
25       }
26     }
27     );
28   }
29 }

24天的陪伴,舍不得结束这个系列。不过,新的系列即将降临,尽请期待!!!

原文地址:https://www.cnblogs.com/ljydbk/p/14160738.html