坚持写一个简单的方法，如果说明

Question

嗨，基本上我需要写一个方法来计算衬衫的价格前10个衬衫订购的收费为每件衬衫20美元，然后任何衬衫收取每件衬衫15美元。任何人都可以帮助我解决这个问题，这是我迄今为止感谢的。

public static double calculateCost(int ShirtsOrdered) { 
    double cost = 0.0; 

    if (ShirtsOrdered <= 10) { 
     cost = cost + 20.00 * ((ShirtsOrdered)/1); 


    } else if ((ShirtsOrdered > 10) { 
     cost = cost + 15.00 * ((ShirtsOrdered)/1); 



    return cost; 
} 

Answer 1

最短的解决办法是：

public static double calculateCost(int ShirtsOrdered) { 
    if (ShirtsOrdered > 10){ 
     return 200.0 + (ShirtsOrdered - 10) * 15.0; 
    } 
    return ShirtsOrdered * 20.0; 
} 

Answer 2

您必须算多少衬衫后10

public static double calculateCost(int ShirtsOrdered) { 
    double cost = 0.0; 

    if (ShirtsOrdered <= 10) { 
     cost = cost + 20.00 * ((ShirtsOrdered)/1); 


    } else if ((ShirtsOrdered > 10) { 
     cost = cost + 20.00 * (10/1);//<-- here the cost for 10 first shirt 
     cost = cost + 15.00 * ((ShirtsOrdered-10)/1); //<-- here make the count 



    return cost; 
}