【面向对象程序设计】Java大作业 租车系统V4.0

package CarRentalSystem.admin; import CarRentalSystem.RentMgrSys.RentMgrSys; import CarRentalSystem.menuMsg.menuMsg; import CarRentalSystem.JDBCUtils.jdbcUtilsByAdmin; import java.sql.ResultSet; import java.sql.SQLException; import java.util.*; public class admin { Scanner in = new Scanner(System.in); int newCarKind; private String newBrand = ""; private String newType = ""; private String newVehicle = ""; private int perRent = 0; private int newBusSeats = 0; private int newSeats = 0; private int newLoad = 0; private int deleteCarType = 0; private int theDeleteCar; private int id = 12; private int newCarNums=0; private int feature=0; private double income = 0;//初始营业额为0,每次管理登录时从数据库中读取营业额更新，这里的income用作查看与像数据库传值 public int getFeature() { return feature; } public void setFeature(int feature) { this.feature = feature; } //setter 和 getter public int getPerRent() { return perRent; } public void setPerRent(int perRent) { this.perRent = perRent; } public int getNewBusSeats() { return newBusSeats; } public void setNewBusSeats(int newBusSeats) { this.newBusSeats = newBusSeats; } public int getNewLoad() { return newLoad; } public void setNewLoad(int newLoad) { this.newLoad = newLoad; } public int getDeleteCarType() { return deleteCarType; } public void setDeleteCarType(int deleteCarType) { this.deleteCarType = deleteCarType; } public int getTheDeleteCar() { return theDeleteCar; } public void setTheDeleteCar(int theDeleteCar) { this.theDeleteCar = theDeleteCar; } public void deleteCarMethod(){} public String getNewBrand() { return newBrand; } public void setNewBrand(String newBrand) { this.newBrand = newBrand; } public String getNewType() { return newType; } public void setNewType(String newType) { this.newType = newType; } public String getNewVehicle() { return newVehicle; } public void setNewVehicle(String newVehicle) { this.newVehicle = newVehicle; } public int getNewSeats() { return newSeats; } public void setNewSeats(int seats) { this.newSeats = newSeats; } public double getIncome(){ return income; } public void setIncome(double rent){ this.income += rent; } public int getNewCarNums() { return newCarNums; } public void setNewCarNums(int newCarNums) { this.newCarNums = newCarNums; } public static void relenishment(int id, int addNums){ try { RentMgrSys.rs = RentMgrSys.stmt.executeQuery(jdbcUtilsByAdmin.sqlSearchCarSpecifyInfo("nums", id)); RentMgrSys.rs.next(); int numsBefore = RentMgrSys.rs.getInt("nums"); RentMgrSys.stmt.executeUpdate("update cardata set nums="+numsBefore+addNums+" where id="+id); } catch (SQLException e) { e.printStackTrace(); } } public int getId() { return id; } public void setId(int num) { this.id = num; } public static void showCarsInSystemNow(){ try { RentMgrSys.rs = RentMgrSys.stmt.executeQuery("select * from cardata"); RentMgrSys.rs.absolute(1); do { System.out.println("编号: "+RentMgrSys.rs.getInt("id")+"\t\t车类: "+RentMgrSys.rs.getString("vehicle")+"\t\t品牌: "+RentMgrSys.rs.getString("brand")+"\t\t\t车牌号: "+RentMgrSys.rs.getString("type")+"\t\t\t日租金: "+RentMgrSys.rs.getInt("preRent")+"\t\t\t当前系统存量: "+RentMgrSys.rs.getInt("nums")); }while(RentMgrSys.rs.next()); } catch (SQLException e) { e.printStackTrace(); } } public static void showSpecificKindCarsInfo(ResultSet rs){ try { rs.last(); int row = rs.getRow(); if(row == 0){ System.out.println("系统中没有此类车"); return; } rs.absolute(1); String strVehicle="", strBrand="", strType="", strId="", strPreRent="", strNums=""; do{ strId = "编号: "+rs.getInt("id"); strVehicle = "分类: "+rs.getString("vehicle"); strBrand = "品牌: "+rs.getString("brand"); strType = "车牌号: "+rs.getString("type"); strPreRent = "日租金: "+rs.getInt("preRent"); strNums = "存量: "+rs.getInt("nums"); strId = String.format("%-25s", strId); strVehicle = String.format("%-25s", strVehicle); strBrand = String.format("%-25s", strBrand); strType = String.format("%-25s", strType); strPreRent = String.format("%-25s", strPreRent); strNums = String.format("%-25s", strNums); System.out.println(strId+strVehicle+strBrand+strType+strPreRent+strNums); }while(rs.next()); } catch (SQLException e) { e.printStackTrace(); } } public static void deleteWhichCar(String carKind){ try { RentMgrSys.rs = RentMgrSys.stmt.executeQuery(jdbcUtilsByAdmin.sqlReadSpecificKindCar(carKind)); menuMsg.deleteThatCar(); int id = RentMgrSys.in.nextInt(); int count = RentMgrSys.stmt.executeUpdate(jdbcUtilsByAdmin.sqlDeleteCar(id)); if(id == 1){ System.out.println("车辆删除成功"); } } catch (SQLException e) { e.printStackTrace(); } } public void adminSystem(){ int choice; menuMsg.helloAdmin(); while(true){ menuMsg.adminMenu(); choice = RentMgrSys.in.nextInt(); switch (choice){ case -1: RentMgrSys.logOut=true; break; case 0: RentMgrSys.isOver=true; break; case 1: menuMsg.ShowNowInfo(); admin.showCarsInSystemNow(); //meauMsg.adminMenu(); break; case 2: try { RentMgrSys.rs = RentMgrSys.stmt.executeQuery(jdbcUtilsByAdmin.sqlReadMoneyNow(0)); RentMgrSys.rs.next(); System.out.println("截止目前，您的收人为："+RentMgrSys.rs.getFloat("money")+"元"); } catch (SQLException e) { e.printStackTrace(); } //meauMsg.adminMenu(); break; case 3: menuMsg.readyToAddVehicle(); newCarKind = in.nextInt(); String c=""; //c = RentMgrSys.in.nextLine(); if(newCarKind == 1){ //vehicle-车的名牌（大类，比如轿车、客车）、brand（车的品牌， 比如玛莎拉蒂）、type（车牌号）、preRent（日租金） //meauMsg.setNewVihicle(); setNewVehicle("客车"); menuMsg.setNewCarBrand(); setNewBrand(in.next()); menuMsg.setNewCarType(); setNewType(in.next()); menuMsg.setNewCarRentdaily(