5
運行此程序時，我總是收到相同的錯誤消息。這是我得到的：錯誤消息「java.lang.NoSuchMethodError：Customer。<init>（Ljava/lang/String; D）V」
Exception in thread "main" java.lang.NoSuchMethodError: Customer.<init>(Ljava/lang/String;D)V
at Customer5.input(Customer5.java:35)<b>---(See below (code) to refer to lines 35 & 7)
at Customer5.main(Customer5.java:7)
另一件事是，類「客戶」顯示消息說：「類型客戶已被定義。」
import java.util.*;
public class Customer5 {
public static void main(String[] args) {
Customer[] customers=input();//This is line 7
customers=sort(customers);
output(customers);
}
public static Customer[] input(){
Scanner input =new Scanner(System.in);
int n;
String name;
double debt;
System.out.print("Enter number of customers :");
n=input.nextInt();
Customer[] customers=new Customer[n];
for(int i=0; i<n; i++){
System.out.print("Enter name:");
name=input.next();
System.out.print("Enter debt:");
debt=input.nextDouble();
customers[i]=new Customer(name, debt);//This is line 35
}
return customers;
}
public static Customer[] sort(Customer[] customers){
Customer temp;
for(int i=0; i<customers.length; i++){
for(int j=i+1; j<customers.length; j++){
if(customers[j-1].debt>customers[j].debt){
temp=customers[j-1];
customers[j-1]=customers[j];
customers[j]=temp;
}
}
}
return customers;
}
public static void output(Customer[] customers){
for(int i=0; i<customers.length; i++){
System.out.println(customers[i].name+"\t" +customers[i].debt);
}
}
}
class Customer{ //this line shows a message that says:The type Customer is already defined
public String name;
public Double debt;
public Customer(String name, double debt){
this.name=name;
this.debt=debt;
}
}
我不知道該如何解決它。我對這種類型的錯誤信息不是很熟悉。我真的很感激任何關於如何解決這個問題的反饋或意見。謝謝！
重新編譯類和所有相關的類。 –
IDE將爲您處理所有這些問題。 – chrylis