Question

所以，我必须为具有Customer类的视频商店写一张发票，该类包含六个属性，客户名称（字符串），街道地址（字符串），城市（字符串）， state（字符串），邮政编码（字符串）和电话号码。我不得不使用参数化构造函数，它接收属性作为参数，并提供getter和setter。我相信我做得对。

接下来，我必须创建一个具有四个属性的视频类，视频名称（字符串），视频发布年份（整数），视频拷贝数（整数）和每日租金率（双倍）。我不得不为此做一个参数化的构造函数和getter以及setter。

问题始于我的Invoice课程，该课程代表向给定客户租借视频，但尚未完成，但应该有四个属性，即租用视频的客户，租用的视频，日期它被租用（作为输入字符串）和每日租金（双倍）。它也应该有三种方法，小计，税收和总额。我的问题是我已经为客户和视频设置了预设方法，我不知道如何在if语句中有效地使用它们。我不知道我会在第四个测试课程中放入什么才能让它工作。在这一点上，我几乎迷失了，任何正确方向的推动都将受到极大的赞赏。这是我的课程。

客户：

public class Customer {
private String customerName;
private String streetAddress;
private String custCity;
private String custState;
private String custZip;
private String custPhone;
public Customer(String customerName, String streetAddress, String custCity, String custState, String custZip,
        String custPhone) {
    super();
    this.customerName = customerName;
    this.streetAddress = streetAddress;
    this.custCity = custCity;
    this.custState = custState;
    this.custZip = custZip;
    this.custPhone = custPhone;
}
public String getCustomerName() {
    return customerName;
}
public void setCustomerName(String customerName) {
    this.customerName = customerName;
}
public String getStreetAddress() {
    return streetAddress;
}
public void setStreetAddress(String streetAddress) {
    this.streetAddress = streetAddress;
}
public String getCustCity() {
    return custCity;
}
public void setCustCity(String custCity) {
    this.custCity = custCity;
}
public String getCustState() {
    return custState;
}
public void setCustState(String custState) {
    this.custState = custState;
}
public String getCustZip() {
    return custZip;
}
public void setCustZip(String custZip) {
    this.custZip = custZip;
}
public String getCustPhone() {
    return custPhone;
}
public void setCustPhone(String custPhone) {
    this.custPhone = custPhone;
}



}

视频：

public class Video {
private String videoName;
private int videoYear;
private int copyNum;
private double rentalRate;
public Video(String videoName, int videoYear, int copyNum, double rentalRate) {
    super();
    this.videoName = videoName;
    this.videoYear = videoYear;
    this.copyNum = copyNum;
    this.rentalRate = rentalRate;
}
public String getVideoName() {
    return videoName;
}
public void setVideoName(String videoName) {
    this.videoName = videoName;
}
public int getVideoYear() {
    return videoYear;
}
public void setVideoYear(int videoYear) {
    this.videoYear = videoYear;
}
public int getCopyNum() {
    return copyNum;
}
public void setCopyNum(int copyNum) {
    this.copyNum = copyNum;
}
public double getRentalRate() {
    return rentalRate;
}
public void setRentalRate(double rentalRate) {
    this.rentalRate = rentalRate;
}

发票（不完整）：

    import java.util.Scanner;

public class Invoice {
     public static void main(String[] args){
    Scanner in = new Scanner(System.in);
    Customer Brandon = new Customer("Brandon James" , "112 Oak Street" 
        , "CityVille" , "Alabama" , "18229",
        "912-2248");

Customer Judy = new Customer("Judy Vermooth" , "8008 Ribbit Ln.",
        "Metropolis" , "Pennsylvania" , "24057", "241-8009");

Video Easter = new Video("Easter 2", 2002, 4, 2.49);

Video DareDevil3 = new Video ("Dare Devil 3", 2012, 2, 3.62);




if( Prog4.newRental = "Brandon"){
    Customer Brandon = newCust

}
}
}

PROG4（不完全的）：

import java.util.*;

public class Prog4 {
private String newRental;
private String vidName;
private String rentalDate;
private String daysRented;

public static void main(String[] args){
Scanner in = new Scanner(System.in);


System.out.println("Enter Customer Name: ");
 String newRental = in.nextLine();

System.out.println("Enter Video Name: ");
String vidName = in.nextLine();

System.out.println("Enter Rental date in mm/dd/yyyy format: ");
String rentalDate = in.nextLine();

System.out.println("Enter Number of Days Rented");
int daysRented = in.nextInt();
}

public String getNewRental() {
    return newRental;
}

public void setNewRental(String newRental) {
    this.newRental = newRental;
}

public String getVidName() {
    return vidName;
}

public void setVidName(String vidName) {
    this.vidName = vidName;
}

public String getRentalDate() {
    return rentalDate;
}

public void setRentalDate(String rentalDate) {
    this.rentalDate = rentalDate;
}

public String getDaysRented() {
    return daysRented;
}

public void setDaysRented(String daysRented) {
    this.daysRented = daysRented;
}

}

如何使用多种方法？

0 个答案: