Java初学 -- 根据书籍类制作一个简易的控制台图书管理系统

刚刚开始学java

因为练习写了一个简陋的控制台图书管理系统

欢迎各位大佬批评指正

 

首先是书籍类

package cn.com.zx.BookDemo;

import java.util.ArrayList;

public class Book {
    // 书籍包含书名，id，价格，出版年份，作者，出版社，在库数量，出库数量；
    String name;

    public int getInNum() {
        return inNum;
    }

    public void setInNum(int inNum) {
        this.inNum = inNum;
    }

    public int getOutNum() {
        return outNum;
    }

    public void setOutNum(int outNum) {
        this.outNum = outNum;
    }

    int id;
    double price;
    int year;
    String wirter;
    String clas;
    int inNum;
    int outNum;

    public Book(String _name, int _id, double _price, int _year,String _wirter,String _clas,int _inNum , int _outNum) {
        name = _name;
        id = _id;
        price = _price;
        year = _year;
        wirter = _wirter;
        clas = _clas;
        inNum = _inNum;
        outNum = _outNum;

    }

    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 double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    public int getYear() {
        return year;
    }

    public void setYear(int year) {
        this.year = year;
    }

    public String getWirter() {
        return wirter;
    }

    public void setWirter(String wirter) {
        this.wirter = wirter;
    }

    public String getClas() {
        return clas;
    }

    public void setClas(String clas) {
        this.clas = clas;
    }

    public ArrayList title() {
        ArrayList msg = new ArrayList();
        msg.add("书籍名称");
        msg.add("书号");
        msg.add("价格");
        msg.add("年份");
        msg.add("作者");
        msg.add("出版社");
        msg.add("在库量");
        msg.add("出库量");
        return msg;
    }

    public ArrayList