-1
好吧,我正在努力爲學校完成這個項目,它要求我做出幾個月的開關聲明。因此,如果用戶輸入1將打印出一月等等...我得到這個錯誤,它說:無法找到符號 - 可變一月Switch Statement Reverse
import java.util.*;
/**
* Outputs the number on a month name entered by the user.
*
* @author Jack
* @version 1a
*/
public class MonthSwitchReverse {
public static void main(String[] args) {
Scanner in = new Scanner (System.in);
int monthString;
String month;
System.out.println(" Jan = 1/Feb = 2/March = 3/April = 4/MAy = 5/June = 6");
System.out.println(" July = 7/Aug = 8/Sep = 9/Oct = 10/Nov = 11/Dec = 12");
System.out.print("Choose a month above and the system will print out the number assigned to that month: ");
month = in.next();
switch (month) {
case "January": monthString = 1;
break;
case "February": monthString = 2;
break;
case "March": monthString = 3;
break;
case "April": monthString = 4;
break;
case "May": monthString = 5;
break;
case "June": monthString = 6;
break;
case "July": monthString = 7;
break;
case "August": monthString = 8;
break;
case "September": monthString = 9;
break;
case "October": monthString = 10;
break;
case "November": monthString = 11;
break;
case "December": monthString = 12;
break;
default: monthString = 404;
break;
}
System.out.println(monthString);
}
}
編輯:我固定它。謝謝你的幫助。
好吧,你在哪裏* *認爲你已經定義了這些符號? (如果想法是爲用戶輸入*名稱*,爲什麼你用'int'作爲用戶輸入?) –
我也不知道'January'是在哪裏定義的。你的意思是「一月」嗎?或者你的意思是「一個叫'January'的變量?」。 –
我可以問爲什麼這個問題是downvoted?好吧,它是一個簡單的錯誤,但是它是一個有效的問題,帶有複製的代碼 - 我們可以看到他們嘗試了什麼。 –