关于增强for循环的使用 

 1 class MultipleQUestion extends Question{   //多选题类
 2     
 3     private char[] answer;   //多选题答案属性
 4     
 5     public char[] getAnswer() {
 6         return answer;
 7     }
 8 
 9     public void setAnswer(char[] answer) {
10         this.answer = answer;
11     }
12 
13     MultipleQUestion(char[] answer,String title,String[] options){     //多选题构造函数
14         
15         super(title,options);
16         this.setTitle(title);
17         this.setOptions(options);
18         this.answer = answer;
19         
20     }
21     
22     @Override
23     public boolean check(char[] answer){  //多选题检查答案方法
24         Arrays.sort(answer);
25         if(this.answer.length == answer.length){
26             for(int i =0;i<answer.length;i++){       // 此处不能用增强for循环for(int i : answer)遍历answer，i不是char类型的元素，若用for(char i : answer)遍历，则只能用来打印，不能用来做数组下标去比较
27                 if(this.answer[i] != answer[i]){
28                     return false;
29                 }
30             }
31             return true;
32         }
33         return false;
34     }
35 }

 

posted @ 2017-07-07 13:52  KylinStayHere  阅读(332)  评论(0)    收藏  举报