编译以下代码时出现如下编译错误警告,如何解决?import java.util.Scanner; abstract class PayAble { protected String code; public PayAble(String code) { this.code = code; } abstract double pay(); } class Phone extends PayAble { public Phone(String code) { super(code); } } class MobilePhone extends Phone { private int time; private double price; public double internetFee; private double smsFee; public MobilePhone(String code, int time, double price, double internetFee, double smsFee) { super(code); this.time = time; this.price = price; this.internetFee = internetFee; this.smsFee = smsFee; } public double pay() { return time * price + internetFee + smsFee; } } public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int time = scanner.nextInt(); double price = scanner.nextDouble(); MobilePhone mobilePhone = new MobilePhone("", time, price, 0, 0); double fee = mobilePhone.pay(); System.out.println("Fee=" + fee); scanner.close(); } } 编译错误. zipfs/PayAble.java:1: error: duplicate class: PayAble public interface PayAble{ ^ 1 error
时间: 2024-01-13 14:04:02 浏览: 19
根据编译错误提示,错误在PayAble类上,因为PayAble类被定义为抽象类,而在代码中又被定义为接口。因此,需要将PayAble类定义为抽象类或接口,而不是两者都有。
要解决这个问题,只需要修改PayAble类的定义,将它修改为抽象类即可。修改后的代码如下所示:
```
import java.util.Scanner;
abstract class PayAble {
protected String code;
public PayAble(String code) {
this.code = code;
}
abstract double pay();
}
class Phone extends PayAble {
public Phone(String code) {
super(code);
}
}
class MobilePhone extends Phone {
private int time;
private double price;
public double internetFee;
private double smsFee;
public MobilePhone(String code, int time, double price, double internetFee, double smsFee) {
super(code);
this.time = time;
this.price = price;
this.internetFee = internetFee;
this.smsFee = smsFee;
}
public double pay() {
return time * price + internetFee + smsFee;
}
}
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int time = scanner.nextInt();
double price = scanner.nextDouble();
MobilePhone mobilePhone = new MobilePhone("", time, price, 0, 0);
double fee = mobilePhone.pay();
System.out.println("Fee=" + fee);
scanner.close();
}
}
```
运行修改后的代码,应该可以顺利编译和运行了。