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                ### [帶參數的構造函數](https://lingcoder.gitee.io/onjava8/#/book/08-Reuse?id=%e5%b8%a6%e5%8f%82%e6%95%b0%e7%9a%84%e6%9e%84%e9%80%a0%e5%87%bd%e6%95%b0) 上面的所有例子中構造函數都是無參數的 ; 編譯器很容易調用這些構造函數,因為不需要參數。如果沒有無參數的基類構造函數,或者必須調用具有參數的基類構造函數,則必須使用**super**關鍵字和適當的參數列表顯式地編寫對基類構造函數的調用: ~~~ // reuse/Chess.java // (c)2017 MindView LLC: see Copyright.txt // We make no guarantees that this code is fit for any purpose. // Visit http://OnJava8.com for more book information. // Inheritance, constructors and arguments class Game { Game(int i) { System.out.println("Game constructor"); } } class BoardGame extends Game { BoardGame(int i) { super(i); System.out.println("BoardGame constructor"); } } public class Chess extends BoardGame { Chess() { super(11); System.out.println("Chess constructor"); } public static void main(String[] args) { Chess x = new Chess(); } } /* Output: Game constructor BoardGame constructor Chess constructor */ ~~~ 如果沒有在**BoardGame**構造函數中調用基類構造函數,編譯器就會報錯找不到`Game()`的構造函數。此外,對基類構造函數的調用必須是派生類構造函數中的第一個操作。(如果你寫錯了,編譯器會提醒你。)
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