IAM新找到一個在Java錯誤

Question

package ooptutorial; 

public class ShoppingTest { 
    //name of file must be same as name of method 

    public static void main(String[] args) { 
     Shopping firstClient = new Shopping(); 
     int[] pricelist = {299,399,499}; 
     for (int i = 0; i < pricelist.length; i++){ 
      firstClient.Basket(pricelist[i]); 
     } 
     System.out.println("The Total Price of your Item is : " 
      + firstClient.r); 
     System.out.println("The Total Price with VAT : " 
      + firstClient.TotalPrice()); 
     firstClient.DailyIncome(firstClient.TotalPrice()); 

     Shopping secondClient = new Shopping(); 
     int[] pricelist2 = {599,159,459}; 
     for(int i = 0; pricelist2.length; i++){ 
      secondClient.Basket(pricelist2[i]); 
     } 
     System.out.println("The Total Price of your Item is : " 
      + secondClient.r); 
     System.out.println("The Total Price with VAT : " 
      + secondClient.TotalPrice()); 
     secondClent.DailyIncome(secondClient.TotalPrice());  
     System.out.println("The Daily Income : " 
      + secondClient._dailyIncome); 
    } 
} 

[編輯：添加人工破]

class Shopping{ 
    int r = 0; 
    final int VAT_VALUE = 17; 
    static int DailyIncome = 0; 

    int Basket(int ItemPrice){ 
     r = ItemPrice; 
     return r; 
    } 

    int TotalPrice(){ 
     return ((r * VAT_VALUE)/100) + r; 
    } 

    public static int DailyIncome(int income){ 
     _dailyIncome += income; 
     return _dailyIncome; 
    } 
} 

Answer 1

你必須在這條線的錯誤：

for(int i = 0; pricelist2.length; i++){ 

因爲pricelist2.length是int，而不是boolean按照Java語法的要求。也許你的意思是：

for(int i = 0; i < pricelist2.length; i++){