- import java.io.*;
- import java.util.*;
- public class jva110
- {
- public static void main(String arg[])
- {
-
- //取得出題數量
- int userItemCoount = arg.length / 2;
-
- //是否為使用者出題(自由出題)
- Boolean isUserItem = (userItemCoount > 0);
-
- //宣告題目陣列
- String itemQue[];
- String itemAns[];
- //判斷是否是自由出題
- if(isUserItem)
- {
- //是自由出題
-
- //建立陣列
- itemQue = new String[userItemCoount];
- itemAns = new String[userItemCoount];
- //寫入題目
- for(int i=0;i<arg.length;i+=2)
- {
- itemQue[i/2] = arg[i];
- itemAns[i/2] = arg[i+1];
- }
- }else{
- //是預設題目
- itemQue = new String[]{"電腦","資料庫","語法","學校","假期"};
- itemAns = new String[]{"computer","database","syntax","school","Vocation"};
- }
- //紀錄開始時間
- long startTime = new Date().getTime();
-
- //顯示資訊
- System.out.println("請將題目的中文字彙翻譯成英文單字!");
- System.out.println("輸入英文單字答案後請按Enter鍵:\n");
-
- //輸入擷取物件
- Scanner scanner =new Scanner(System.in);
-
- //宣告答對題目數變數
- int Right=0;
- //開始出題
- for(int i=0;i<itemQue.length;i++)
- {
- System.out.println("第" + (i+1) +"題__ " + itemQue[i]);
- String useInput = scanner.next();
-
- String ans = itemAns[i].toLowerCass();
- useInput = useInput.toLowerCass();
-
- if(useInput.equals(ans))
- {
- System.out.println("答對了!");
- Right++;
- }else{
- System.out.println("答錯了!");
- System.out.println("正確答案是" + itemAns[i]+"\n");
- }
-
- }
- //結算時間
- long endTime = new Date().getTime();
- long useTime = (endTime-startTime)/1000;
-
- System.out.println("你使用了" + useTime + "秒,在" + itemQue.length + "題中答對了" + Right + "題");
- }
- }
複製代碼 老師,為甚麼一直有兩個錯誤訊息
8 C7 P: j& q- A/ ~: g/ A3 B錯誤訊息如下
9 r5 N3 \& v$ _jva110.java:54: error: cannot find symbol1 O' @- O- t |' E: ]9 k$ t- M" G6 ?
String ans = itemAns.toLowerCass();7 @; P# m* _! k* i# r/ Z4 g$ H& t
^
U; x8 p( D6 U3 b symbol: method toLowerCass(): p, T8 V+ v' c; d
location: class String
6 c. s2 F, w1 W( [jva110.java:55: error: cannot find symbol1 \8 p6 y3 N% r% X8 R4 [
useInput = useInput.toLowerCass();
7 y$ C$ c9 f0 V7 U. P ^
/ O6 Q5 @2 S- [0 _ symbol: method toLowerCass()
1 _, s8 u! @$ h( I) ]% R0 E location: variable useInput of type String
9 j; D1 D) X5 L; e$ D! l( }$ f2 errors |