Question

我丢失了花括号还是正在发生其他事情，而我完全破坏了Java，这是它可以提供的唯一错误？我已经参加了很长时间了，我看不到它的缺失之处。我尝试过删除并放在括号中。我不断收到此错误：

Pizza.java:40：错误：缺少返回语句 } ^ 1个错误

工具已完成，退出代码为1

public class Pizza {

    private String customerName;
    private String pizzaSize;
    private int toppings;

    Pizza (String name, String size, int number){
        customerName = name;
        pizzaSize = size;
        toppings = toppings;
    }


    public String getCustomerName(){
        return customerName;
    }

    public void setCustomerName(String name){
        customerName = name;    
    }



    public double calculateCharge(){
        final double SMALL_BASE_CHARGE = 6.50;
        final double SMALL_TOPPING_CHARGE = .75;
        final double MEDIUM_BASE_CHARGE = 10.50;
        final double MEDIUM_TOPPING_CHARGE = 1.25;
        final double LARGE_BASE_CHARGE = 14.50;
        final double LARGE_TOPPING_CHARGE = 1.75;

        double charge = 0.0;
    }
}

Answer 1

您的编译器说您在calculateCharge（）方法末尾缺少返回语句。

因此，只需添加一个return语句，像这样

public double calculateCharge()
{
    final double SMALL_BASE_CHARGE = 6.50;
    final double SMALL_TOPPING_CHARGE = .75;
    final double MEDIUM_BASE_CHARGE = 10.50;
    final double MEDIUM_TOPPING_CHARGE = 1.25;
    final double LARGE_BASE_CHARGE = 14.50;
    final double LARGE_TOPPING_CHARGE = 1.75;

    double charge = 0.0;
    // TODO: Do your math here
    return charge;
}

Answer 2

不缺少括号，消息清晰

error: missing return statement

您指定了calculateCharge()函数将返回double，但您忘记返回某些内容。

public double calculateCharge()
{
    final double SMALL_BASE_CHARGE = 6.50;
    final double SMALL_TOPPING_CHARGE = .75;
    final double MEDIUM_BASE_CHARGE = 10.50;
    final double MEDIUM_TOPPING_CHARGE = 1.25;
    final double LARGE_BASE_CHARGE = 14.50;
    final double LARGE_TOPPING_CHARGE = 1.75;

    double charge = 0.0;

    // HERE
    return charge;
}

我在哪里缺少大括号？

2 个答案: