题目
建立一个公交管理系统，帮助公交管理部门监督管理公交日常运营情况，根据公交线路、车辆情况、工作人员、乘客的信息。
从构建基本类开始入手。整个系统分为四个模块，分别为汽车管理模块(Bus)、线路模块（Route）、员工管理模块(Employee)、
乘客模块（Passenger）需要实现四个模块的增删改查功能。
- 创建汽车管理模块
package chapter02;
import java.util.ArrayList;
import java.util.Scanner;
public class Bus {
private String type; //定义车辆类型
private String engineNumber; //定义车辆编号
private int seatingCapacity; //定义载客量
private int route; // 定义线路
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getEngineNumber() {
return engineNumber;
}
public void setEngineNumber(String engineNumber) {
this.engineNumber = engineNumber;
}
public int getSeatingCapacity() {
return seatingCapacity;
}
public void setSeatingCapacity(int seatingCapacity) {
this.seatingCapacity = seatingCapacity;
}
public int getRoute() {
return route;
}
public void setRoute(int route) {
this.route = route;
}
//无参构造
Bus() {
}
public void catInfo() {
ArrayList<Bus> array = new ArrayList<>();
Scanner sc = new Scanner(System.in);
while (true) {
System.out.println("====================车辆管理系统==================");
System.out.println("1.添加车辆信息\n2.查看车辆信息\n3.修改车辆信息\n4.删除车辆信息\n5。退出");
System.out.println("================================================");
System.out.println("请输入你的操作:");
int number = sc.nextInt();
if (number < 0 || number > 5) {
System.out.println("输入错误，请重新输入！");
} else if (number == 1) {
addBusInfo(array);
} else if (number == 2) {
showInfo(array);
} else if (number == 3) {
replaceInfo(array);
} else if (number == 4) {
removeInfo(array);
} else if (number == 5) {
break;
}
}
}
//添加车辆信息
public void addBusInfo(ArrayList<Bus> array) {
Bus bus = new Bus();
Scanner sc = new Scanner(System.in);
System.out.println("请输入车辆编号:");
String engineNumber = sc.nextLine();
boolean flag = dieInfo(array, engineNumber);
if (flag) {
System.out.println("车辆编号已存在！");
} else {
System.out.println("请输入车辆类型:");
String type = sc.nextLine();
System.out.println("请输入车辆载客量:");
int seatingCapacity = sc.nextInt();
System.out.println("请输入车辆运营路线:");
int route = sc.nextInt();
//创建对象
bus.setType(type);
bus.setEngineNumber(engineNumber);
bus.setSeatingCapacity(seatingCapacity);
bus.setRoute(route);
array.add(bus);
System.out.println("添加成功！");
}
}
//查看车辆信息
public void showInfo(ArrayList<Bus> array) {
System.out.println("车辆编号\t\t车辆类型\t\t 车辆载客量\t\t车辆运营路线");
for (Bus bus : array) {
System.out.println(bus.getEngineNumber() + "\t\t\t " + bus.getType() + "\t\t\t" + bus.getSeatingCapacity() + "\t\t\t\t" + bus.getRoute());
}
}
//修改车辆信息
public void replaceInfo(ArrayList<Bus> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入需要修改的车辆编号:");
String engineNumber = sc.nextLine();
boolean flag = dieInfo(array, engineNumber);
if (flag) {
for (int i = 0; i < array.size(); i++) {
Bus bus = array.get(i);
if (bus.getEngineNumber().equals(engineNumber)) {
System.out.println("车辆编号\t\t车辆类型\t 车辆载客量\t\t车辆运营路线");
System.out.println(bus.getEngineNumber() + "\t\t\t " + bus.getType() + "\t\t\t" + bus.getSeatingCapacity() + "\t\t\t\t" + bus.getRoute());
System.out.println("请输入修改后的车辆类型:");
String type = sc.nextLine();
System.out.println("请输入修改后的车辆载客量:");
int seatingCapacity = sc.nextInt();
System.out.println("请输入修改后的车辆运营路线:");
int route = sc.nextInt();
bus.setType(type);
bus.setSeatingCapacity(seatingCapacity);
bus.setRoute(route);
System.out.println("修改成功！");
}
}
} else {
System.out.println("车辆编号不存在！");
}
}
//删除车辆信息
public void removeInfo(ArrayList<Bus> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入车辆编号:");
String engineNumber = sc.nextLine();
boolean flag = dieInfo(array, engineNumber);
if (flag) {
for (int i = 0; i < array.size(); i++) {
Bus bus = array.get(i);
if (bus.getEngineNumber().equals(engineNumber)) {
array.remove(bus);
}
}
System.out.println("删除成功");
} else {
System.out.println("车辆编号不存在！");
}
}
// 判断车辆信息不存在
boolean dieInfo(ArrayList<Bus> array, String engineNumber) {
boolean flag = false;
for (Bus bus : array) {
if (bus.getEngineNumber().equals(engineNumber)) {
flag = true;
break;
}
}
return flag;
}
}- 创建线路模块
package chapter02;
import java.util.ArrayList;
import java.util.Scanner;
public class Route {
private int numberStops;
private String StartStation;
private String destination;
private String runningTime;
private int index = 0;
public int getIndex() {
return index;
}
public void setIndex(int index) {
this.index = index;
}
public Route() {
}
public int getNumberStops() {
return numberStops;
}
public void setNumberStops(int numberStops) {
this.numberStops = numberStops;
}
public String getStartStation() {
return StartStation;
}
public void setStartStation(String startStation) {
StartStation = startStation;
}
public String getDestination() {
return destination;
}
public void setDestination(String destination) {
this.destination = destination;
}
public String getRunningTime() {
return runningTime;
}
public void setRunningTime(String runningTime) {
this.runningTime = runningTime;
}
//路线操作
public void catInfo() {
ArrayList<Route> array = new ArrayList<>();
Scanner sc = new Scanner(System.in);
while (true) {
System.out.println("====================车辆管理系统==================");
System.out.println("1.添加线路信息\n2.查看线路信息\n3.修改线路信息\n4.删除线路信息\n5。退出");
System.out.println("================================================");
System.out.println("请输入你的操作:");
int number = sc.nextInt();
if (number < 0 || number > 5) {
System.out.println("输入错误，请重新输入！");
} else if (number == 1) {
addRouteInfo(array);
} else if (number == 2) {
showRouteInfo(array);
} else if (number == 3) {
replaceRouteInfo(array);
} else if (number == 4) {
removeRouteInfo(array);
} else if (number == 5) {
break;
}
}
}
//添加线路信息
public void addRouteInfo(ArrayList<Route> array) {
Route route = new Route();
Scanner sc = new Scanner(System.in);
System.out.println("请输入线路运营总站数:");
int NumberStops = sc.nextInt();
System.out.println("请输入车辆起始站:");
String StartStation = sc.next();
System.out.println("请输入终点站:");
String Destination = sc.next();
System.out.println("请输入车辆运行时间:");
String RunningTime = sc.next();
route.setNumberStops(NumberStops);
route.setStartStation(StartStation);
route.setDestination(Destination);
route.setRunningTime(RunningTime);
index = index + 1;
route.setIndex(index);
array.add(route);
System.out.println("添加成功!");
}
//查看线路信息
public void showRouteInfo(ArrayList<Route> array) {
if (array.size() == 0) {
System.out.println("还没有线路信息，请先添加信息！");
} else {
System.out.println("编号\t\t线路运营总站数\t\t起始站\t\t终点站\t\t\t运营时间");
for (Route route : array) {
System.out.println(route.getIndex() + "\t\t\t" + route.getNumberStops() + "\t\t\t\t " + route.getStartStation() + "\t\t\t " + route.getDestination() + "\t\t\t\t " + route.getRunningTime());
}
}
}
//修改车辆信息
public void replaceRouteInfo(ArrayList<Route> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入车辆编号:");
int index = sc.nextInt();
boolean flag = Userinfo(array, index);
if (flag) {
for (int i = 0; i < array.size(); i++) {
Route route = array.get(i);
if (route.getIndex() == index) {
System.out.println("请输入修改后的线路站数:");
int NumberStops = sc.nextInt();
System.out.println("请输入修改后起始站:");
String StartStation = sc.next();
System.out.println("请输入终点站:");
String Destination = sc.next();
System.out.println("请输入车辆运行时间:");
String RunningTime = sc.next();
route.setNumberStops(NumberStops);
route.setStartStation(StartStation);
route.setDestination(Destination);
route.setRunningTime(RunningTime);
System.out.println("修改成功！");
}
}
} else {
System.out.println("你输入的线路编号不存在！");
}
}
//删除线路信息
public void removeRouteInfo(ArrayList<Route> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入需要删除的线路编号:");
int index = sc.nextInt();
boolean flag = Userinfo(array, index);
if (flag) {
for (int i = 0; i < array.size(); i++) {
Route route = array.get(i);
if (route.getIndex() == index) {
array.remove(route);
}
}
System.out.println("删除成功！");
} else {
System.out.println("你输入的线路编号不存在！");
}
}
//判断线路是否存在
public boolean Userinfo(ArrayList<Route> array, int index) {
boolean flag = false;
for (Route route : array) {
if (route.getIndex() == index) {
flag = true;
break;
}
}
return flag;
}
}- 创建员工管理模块
package chapter02;
import java.beans.beancontext.BeanContext;
import java.util.ArrayList;
import java.util.Scanner;
public class Employee {
private String name;
private int ID;
private int age;
private double salary;
private String department;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getID() {
return ID;
}
public void setID(int ID) {
this.ID = ID;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public double getSalary() {
return salary;
}
public void setSalary(double salary) {
this.salary = salary;
}
public String getDepartment() {
return department;
}
public void setDepartment(String department) {
this.department = department;
}
Employee() {
}
void catinfo() {
ArrayList<Employee> array = new ArrayList<>();
System.out.println("=======================");
System.out.println("1.添加员工信息\n2.查看员工信息\n3.修改员工信息\n4.删除员工信息\n5.退出");
System.out.println("=======================");
while (true) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入要进行的操作:");
int number = sc.nextInt();
if (number == 1) {
addEmployeeInfo(array);
} else if (number == 2) {
showEmployeeInfo(array);
} else if (number == 3) {
alterEmployeeInfo(array);
} else if (number == 4) {
removeEmployeeInfo(array);
} else if (number == 5) {
break;
} else {
System.out.println("输入错误,请重新输入！");
}
}
}
//添加员工信息
void addEmployeeInfo(ArrayList<Employee> array) {
//输入信息
Scanner sc = new Scanner(System.in);
System.out.println("请输入姓名:");
String name = sc.nextLine();
System.out.println("请输入员工编号:");
int ID = sc.nextInt();
boolean flag = dieInfo(array, ID);
if (flag) {
System.out.println("编号已存在！");
} else {
System.out.println("请输入年龄:");
int age = sc.nextInt();
System.out.println("请输入薪水:");
double salary = sc.nextDouble();
System.out.println("请输入部门:");
String department = sc.next();
// 创建对象
Employee employee = new Employee();
employee.setName(name);
employee.setID(ID);
employee.setAge(age);
employee.setSalary(salary);
employee.setDepartment(department);
array.add(employee);
System.out.println("添加成功！");
}
}
//查看员工信息
void showEmployeeInfo(ArrayList<Employee> array) {
System.out.println("编号\t\t姓名\t\t年龄\t\t薪资\t\t部门");
for (Employee employee : array) {
System.out.println(employee.getID() + "\t\t" + employee.getName() + "\t\t" + employee.getAge() + "\t\t" + employee.getSalary() + "\t\t" + employee.getDepartment());
}
}
//修改员工信息
void alterEmployeeInfo(ArrayList<Employee> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入需要修改的编号:");
int ID = sc.nextInt();
boolean flag = dieInfo(array, ID);
if (flag) {
for (Employee employee : array) {
if (employee.getID() == ID) {
System.out.println("请输入姓名:");
String name = sc.next();
System.out.println("请输入年龄:");
int age = sc.nextInt();
System.out.println("请输入薪水:");
double salary = sc.nextDouble();
System.out.println("请输入部门");
String department = sc.next();
employee.setName(name);
employee.setID(ID);
employee.setAge(age);
employee.setSalary(salary);
employee.setDepartment(department);
System.out.println("修改成功！");
}
}
} else {
System.out.println("没有该编号！");
}
}
//删除员工信息
void removeEmployeeInfo(ArrayList<Employee> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入需要删除的编号:");
int ID = sc.nextInt();
boolean flag = dieInfo(array, ID);
if (flag) {
for (int i = 0; i < array.size(); i++) {
Employee employee = array.get(i);
if (employee.getID() == ID) {
array.remove(employee);
}
}
System.out.println("删除成功！");
} else {
System.out.println("没有该编号！");
}
}
// 判断员工信息是否存在
boolean dieInfo(ArrayList<Employee> array, int ID) {
boolean flag = false;
for (Employee employee : array) {
if (employee.getID() == ID) {
flag = true;
break;
}
}
return flag;
}
}- 乘客管理模块:
package chapter02;
import java.util.ArrayList;
import java.util.Scanner;
public class Passenger {
private String name;
private char sex;
private int age;
private String message;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public char getSex() {
return sex;
}
public void setSex(char sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
void catinfo() {
System.out.println("=======================");
System.out.println("1.添加乘客信息\n2.查看乘客信息\n3.修改乘客信息\n4.删除乘客信息\n5.退出");
System.out.println("=======================");
ArrayList<Passenger> array = new ArrayList<>();
while (true) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入要进行的操作:");
int number = sc.nextInt();
if (number == 1) {
addPassengerInfo(array);
} else if (number == 2) {
showPassengerInfo(array);
} else if (number == 3) {
alterPassengerInfo(array);
} else if (number == 4) {
removePassengerInfo(array);
} else if (number == 5) {
break;
} else {
System.out.println("输入错误,请重新输入！");
}
}
}
//添加乘客信息
void addPassengerInfo(ArrayList<Passenger> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入乘客姓名:");
String name = sc.next();
boolean flag = dieInfo(array, name);
if (flag) {
System.out.println("乘客已存在！");
} else {
System.out.println("请输入乘客性别:");
String s = sc.next();
char sex = s.charAt(0);
System.out.println("请输入乘客年龄:");
int age = sc.nextInt();
System.out.println("请输入乘客的信息:");
String message = sc.next();
//创建对象
Passenger passenger = new Passenger();
passenger.setName(name);
passenger.setSex(sex);
passenger.setAge(age);
passenger.setMessage(message);
array.add(passenger);
System.out.println("添加成功 ");
}
}
//查看乘客信息
void showPassengerInfo(ArrayList<Passenger> array) {
System.out.println("姓名\t\t年龄\t\t性别\t\t乘客信息");
for (Passenger passenger : array) {
System.out.println(passenger.getName() + "\t\t" + passenger.getAge() + "\t\t" + passenger.getSex() + "\t\t" + passenger.getMessage());
}
}
//修改乘客信息
void alterPassengerInfo(ArrayList<Passenger> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入乘客姓名:");
String name = sc.nextLine();
boolean flag = dieInfo(array, name);
if (flag) {
for (Passenger passenger : array) {
if (passenger.getName().equals(name)) {
System.out.println("请输入乘客性别:");
String s = sc.next();
char sex = s.charAt(0);
System.out.println("请输入乘客年龄:");
int age = sc.nextInt();
System.out.println("请输入乘客的信息:");
String message = sc.next();
//创建对象
passenger.setName(name);
passenger.setSex(sex);
passenger.setAge(age);
passenger.setMessage(message);
}
}
}
}
//删除乘客信息
void removePassengerInfo(ArrayList<Passenger> array) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入乘客姓名:");
String name = sc.nextLine();
boolean flag = dieInfo(array, name);
if (flag) {
for (int i = 0; i < array.size(); i++) {
Passenger passenger = array.get(i);
if (passenger.getName().equals(name)) {
array.remove(passenger);
}
}
}
}
// 判断员工信息是否存在
boolean dieInfo(ArrayList<Passenger> array, String name) {
boolean flag = false;
for (Passenger passenger : array) {
if (passenger.getName().equals(name)) {
flag = true;
break;
}
}
return flag;
}
}- 主程序调用模块:
package chapter02;
import java.util.Scanner;
public class PublicCar {
public static void main(String[] args) {
Bus bus = new Bus();
Route route = new Route();
Employee employee = new Employee();
Passenger passenger = new Passenger();
while (true) {
System.out.println("======================");
System.out.println("1.车辆管理\n2.线路管理\n3.员工管理\n4.乘客管理\n5.退出");
System.out.println("======================");
Scanner sc = new Scanner(System.in);
System.out.println("请输入要进行的操作:");
int number = sc.nextInt();
if (number == 1) {
bus.catInfo();
} else if (number == 2) {
route.catInfo();
} else if (number == 3) {
employee.catinfo();
} else if (number == 4) {
passenger.catinfo();
} else if (number == 5) {
System.out.println("操作结束！");
break;
}
}
}
}参考文献
java语言程序设计面向对象的设计思想与实践
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