이것은 Waffle.java이며, 컴파일 된 후에 성공적으로 완료됩니다.Java 생성자와 슈퍼가 필요하지만 이미 정의했습니다.
public class Waffle extends Customer{
int waffle_favourite;
double amount1;
static double Waffle(int waffle_favourite, double amount1){
if(waffle_favourite == 1){
System.out.println("You have picked CHOCHOLATE.");
System.out.println("The price is RM0.80.");
amount1 = 0.80;
return amount1;}
else if(waffle_favourite == 2){
System.out.println("You have picked HONEY.");
System.out.println("The price is RM1.00.");
amount1 = 1.00;
return amount1;}
else if(waffle_favourite == 3){
System.out.println("You have picked YOGURT.");
System.out.println("The price is RM1.50.");
amount1 = 1.50;
return amount1;}
else{
System.out.println("Invalid value.");}return amount1;}}
이것은 Waffle2.java입니다. CMD가 필요했습니다. 생성자는 이미 Waffle.java에 빌드되어 있습니다. 어떻게 해결할 수 있을까요 ?? 위치 생성자 와플 (두 번 INT) :
import java.util.Scanner;
public class Waffle2 extends Waffle{
Scanner scan = new Scanner(System.in);
int waffle_state;
double amount2;
double total_amount;
double payment;
public Waffle2(int waffle_favourite, double amount1, int waffle_state, double amount2, double total_amount){
super(waffle_favourite, amount1);
if(waffle_state == 1){
System.out.println("");
System.out.println("You have picked SOFT.");
System.out.println("The price is RM1.00.");
amount2 = 1.00;
total_amount = amount1 + amount2;
System.out.println("Your total amount is:RM " + total_amount);
System.out.println("");
for(int i=0; i <= 1; i++){
System.out.print("Please keyin your payment:RM");
payment = scan.nextDouble();
if(payment < total_amount){
total_amount -= payment;
System.out.println("You still need to pay RM:" + total_amount);}
else if(payment == total_amount){
System.out.println("Thank you for your order.");
break;}
else{
System.out.println("Invalid value.");}}}
else if(waffle_state == 2){
System.out.println("");
System.out.println("You have picked CRISPY.");
System.out.println("The price is RM1.20.");
amount2 = 1.20;
total_amount = amount1 + amount2;
System.out.println("Your total amount is:RM " + total_amount);
System.out.println("");
for(int i=0; i <= 1; i++){
System.out.print("Please keyin your payment:RM");
payment = scan.nextDouble();
if(payment < total_amount){
total_amount -= payment;
System.out.println("You still need to pay RM:" + total_amount);}
else if(payment == total_amount){
System.out.println("Thank you for your order.");
break;}
else{
System.out.println("Invalid value.");}}}
else if(waffle_state == 3){
System.out.println("");
System.out.println("You have picked CHEWY.");
System.out.println("The price is RM1.50.");
amount2 = 1.50;
total_amount = amount1 + amount2;
System.out.println("Your total amount is:RM " + total_amount);
System.out.println("");
for(int i=0; i <= 1; i++){
System.out.print("Please keyin your payment:RM");
payment = scan.nextDouble();
if(payment < total_amount){
total_amount -= payment;
System.out.println("You still need to pay RM:" + total_amount);}
else if(payment == total_amount){
System.out.println("Thank you for your order.");
break;}
else{
System.out.println("Invalid value.");}}}}}
나는이 클래스를 컴파일 한 후 컴파일이 메시지 심볼 기호를 찾을 수 없습니다 나온다 (waffle_favourite, amount1) 클래스 와플 슈퍼; ^ 1 오류
나는 많은 방법을 시도,하지만 여전히 HELP에 대한 오류, 들으 발생합니다.
코드로 이미지를 게시하지 마십시오 –
'Waffle'에는 생성자가 없습니다. 그것은 정적 인 방법입니다. –
[좋은 질문이 있습니까?] (https://stackoverflow.com/help/how-to-ask)를 참조하십시오. – khelwood