1
所以这一个是有点冗长。我试图完成一个程序，其中机票价格取决于购买日期。我需要Tester.Java从对象中获取信息，并根据票证类型输出适当的价格。我已经在测试人员中设置了一组if语句，但我现在正处于如何完成这个程序的过程中。我将在下面粘贴我的代码。OOP票价计划
测试仪（包含主法）：
package tester;
import java.util.Scanner;
public class Tester extends Ticket{
/**
* @param args the command line arguments
*/
public static void main(String[] args){
Scanner db = new Scanner(System.in);
Ticket firstTicket = new Ticket();
System.out.println("The first ticket: "+firstTicket.toString());
int x = 0;
while(x!=2){
if(x==2){
System.out.println("Goodbye.");
}
else{
System.out.println("What type of ticket are you purchasing?");
System.out.println("1.Walk Up");
System.out.println("2.Advance");
System.out.println("3.Student Advance");
int t = db.nextInt();
if(t==1){
}
if(t==2){
}
if(t==3){
}
}
System.out.println("Do you need another ticket?");
x= db.nextInt();
}
}
}
票（超类）：
package tester;
import java.util.Scanner;
public class Ticket {
public int ticket;
public double price;
/**
* holds default values for ticket number and price
*/
public Ticket(){
super();
this.ticket=1;
this.price=15.0;
}
/**
* Stores the values for ticket number and the price, based upon ticket type
* @param ticket
* @param price
*/
public Ticket(int ticket, double price){
this.ticket=ticket;
this.price=price;
}
/**
* returns the value of price
* @return price
*/
public double getPrice(){
return price;
}
@Override
public String toString(){
return "Ticket #" + ticket + " Ticket price: $"+ price;
}
}
摩天票：
package tester;
/**
*
* @author dylan
*/
public class WalkupTicket extends Ticket{
/**
* holds the price of a walkup ticket 50$
*/
public WalkupTicket(){
this.price=50;
ticket++;
}
}
预售票：
package tester;
import java.util.Scanner;
public class AdvanceTicket extends Ticket {
/**
* stores the values of an advance ticket, depending on how many days before
* the event it is purchased
*/
public AdvanceTicket(){
Scanner db = new Scanner(System.in);
System.out.println("How many days before the event are you purchasing your ticket?");
int days = db.nextInt();
// days before is 10 or less days
if(days >= 10){
price=30;
ticket++;
}
// days before is more than 10
else{
this.price=40;
ticket++;
}
}
}
学生预售票：
package tester;
import java.util.Scanner;
public class StudentAdvanceTicket extends AdvanceTicket{
/**
* stores the values of an advance ticket, depending on how many days before
* the event it is purchased, with student discount.
*/
public StudentAdvanceTicket(){
Scanner db = new Scanner(System.in);
System.out.println("How many days before the event are you purchasing your ticket?");
int days = db.nextInt();
System.out.println("Are you a student?");
System.out.println("1. Yes");
System.out.println("2. No");
int stud = db.nextInt();
// days before is 10 or less days
if(days >= 10 && stud == 1){
price=15;
ticket++;
}
// days before is more than 10
if(days <= 10 && stud == 1){
this.price=20;
ticket++;
}
}
}
我觉得我做一个简单的错误，但我是新来的OOP所以我有麻烦位与此有关。
这不是你的问题清楚你的错误是什么导致你是从你的程序 – CocoNess
尼斯期望问题，虽然有点广阔。而且：细节很重要。请看看我如何重新格式化您的输入以使其更快/更易于阅读。 – GhostCat