错误:无法找到或加载主类迪斯尼乐园

Question

我的代码进行了编译，我有两个文本文件需要从程序中读取，但当我运行程序时，我得到了以下错误: menuItems.txt包含:油炸冰淇淋汉堡奶酪汉堡火鸡腿玉米狗披萨漏斗蛋糕苏打水

priceItems包含:5 4 9 10 13 7 9 6 5所有文件都位于我的桌面上

错误:无法找到或加载主类迪士尼乐园包com.Kassie$；

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Scanner;

public class Disneyland {
//Initialize the items 1D array
public static String[] getItems() {
   try {
       //Read from file
       String[] aItems = new String(Files.readAllBytes
           (Paths.get("src/com/Kassie$/desktop/menuItems.txt")))
           .split("\n");
       return aItems;
    } catch (IOException e) {
       e.printStackTrace();
   }
   return null;
}
//Initialize the items 1D array
public static String[] getPrices() {
   try {
       //Read from file
           String[] aPrices = new String(Files.readAllBytes
           (Paths.get("src/com/Kassie$/desktop/menuPrices.txt")))
           .split("\n");
           return aPrices;
       } catch (IOException e) {
           e.printStackTrace();
       }
       return null;  
}
// Find the character's location
public static String findLocation(String[][] storedValue, String name) {
   for(int i = 0; i < storedValue.length; i++) {
       if(storedValue[i][0].equals(name)) {
           return (storedValue[i][1]);
       }
   }
   return null;
}
public static void main(String[] args) {
   char choice = ' ';
   int totPrice = 0;
   Scanner s = new Scanner(System.in);
   String[][] characterLocation = {{"Mickey Mouse","Main Street USA"},
       {"Minnie Mouse", "Toon Town"},
       {"Goofy","Frontier Land"},
       {"Pluto","Tomorrowland"},
       {"Belle","Fantasyland"},
       {"Jasmine", "Adventureland"}};
   System.out.println("Do you like to know the "
       + "Disney Character's location(Y/N)?");
   choice = s.next().charAt(0);
   if(choice == 'Y' || choice == 'y') {
       System.out.println("Enter the name of the character");
       String aName = s.next();
       String location = findLocation(characterLocation,aName);
       if( location != null) {
           System.out.println("The character is located in " + location);
       }
       else {
           System.out.println("Sorry! The character you are looking for "
               + "is not in park today");
       }
   }
   String[] items = getItems();
   String[] prices = getPrices();
   choice = ' ';
   System.out.println("Would you like to view the menu?(Y/N)");
   choice = s.next().charAt(0);
   if(choice == 'N' || choice == 'n') {
       System.exit(0);
   }
   while(choice == 'Y' || choice == 'y') {
       for(int i = 0; i < items.length; i++) {
           System.out.println("Enter " + (i+1) + " for " + items[i]);
       }
       int option = s.nextInt();
       System.out.println("Item : " + items[option-1]);
       System.out.println("Price : " + prices[option-1]);
       totPrice = totPrice + Integer.parseInt(prices[option-1]);
       System.out.println("Do you want to order more(Y/N)?");
       choice = s.next().charAt(0);
   }
   System.out.println("Are you an Annual Pass Holder?(Y/N)?");
   choice = s.next().charAt(0);
   if(choice == 'Y' || choice == 'y') {
       System.out.println("Your bill amount due : $" +        ((double)totPrice -
   ((double)(totPrice*15))/100));
       System.exit(1);
   }
   System.out.println("Your bill amount due : $" + totPrice);
}
}

Answer 1

你需要避开路上的美元符号。

要匹配美元符号，请使用"\$"

public static String[] getPrices() {
   try {
       //Read from file
           String[] aPrices = new String(Files.readAllBytes
           (Paths.get("src/com/Kassie\\$/desktop/menuPrices.txt")))
           .split("\n");
           return aPrices;
       } catch (IOException e) {
           e.printStackTrace();
       }
       return null;  
}