[問題] 我的程式哪裡有問題?

看板java作者LawLombie (盧芹達)時間6年前 (2017/10/18 15:46)推噓0(0推 0噓 11→)

留言11則, 4人參與討論串1/1

import java.util.*; public class TrapArea { public static void main(String[] argv) { Scanner scan = new Scanner(System.in); boolean Again = true; char YN; double Upper, Lower, Height, Area; System.out.println("Calculate a trapezoid\'s area"); while (Again == true){ Upper = Lower = Height = Area = 0; System.out.print("Input the trapezoid\'s upper base(cm):"); Upper = scan.nextDouble(); //The upper base of the trapezoid System.out.print("\r\nInput the trapezoid\'s lower base(cm):"); Lower = scan.nextDouble(); //The lower base of the trapezoid System.out.print("\r\nInput the trapezoid\'s height(cm):"); Height = scan.nextDouble(); //The height of the trapezoid Area = (Upper + Lower) /2 *Height; //The area of the trapezoid System.out.println("\r\nThe area of the trapezoid is" + Area + "cm2"); System.out.print("Do you want to calculate another trapezoid\'s area? Input Y or N."); YN = scan.nextChar(); if (YN == 'N'){ Again = false; } } } } ----------------------------------------------------------------------------- 如上我在編譯它時，會跳出 https://imgur.com/NdRqQZG