JAVA【案例6-1】库存管理系统

import java.util.ArrayList;
import java.util.Scanner;

class Phone{
    private String name;
    private String color;
    private int price;
    private int num;

    public Phone() {
    }
    public Phone(String name, String color, int price, int num) {
        this.name = name;
        this.color = color;
        this.price = price;
        this.name = name;
        this.num = num;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getColor() {
        return color;
    }
    public void setColor(String color) {
        this.color = color;
    }
    public int getPrice() {
        return price;
    }
    public void setPrice(int price) {
        this.price = price;
    }
    public int getNum() {
        return num;
    }
    public void setNum(int num) {
        this.num = num;
    }
    @Override
    public String toString() {
        return "Phone [name=" + name + ", color=" + color + ", price=" + price + ", num=" + num + "]";
    }
}
public class li2 {
    static ArrayList<Phone> c = new ArrayList<>();
    static Scanner sc = new Scanner(System.in);
    public static void main (String[] arge) {
        c.add(new Phone("小米14","玫瑰金",3999,15));
        c.add(new Phone("小米14","幻彩紫",3699,28));
        c.add(new Phone("华为p30","白金色",5699,2));
        c.add(new Phone("华为p30","幻彩白",5999,18));
        c.add(new Phone("VIVO PLus9","幻彩紫",2699,28));
        c.add(new Phone("魅族16th","紫金黑",5229,10));
        c.add(new Phone("苹果11","土豪金",5999,51));
        System.out.println("欢迎使用库房管理系统，请选择要进行的操作");
        while (true) {
            System.out.println("1、商品入库");
            System.out.println("2、商品显示");
            System.out.println("3、删除商品");
            System.out.println("4.退出系统");
            int choice = sc.nextInt();
            if(choice ==1) {
                add();
                show();
            }else if (choice ==2) {
                show();//商品显示
            }else if (choice ==3) {
                delete();
                show();
            }else if (choice ==4) {
                break;
            }else {
                System.out.println("您的输入有误！");
            }
        }
    }
    private static void delete() {
        System.out.println("请输入要删除的商品编号：");
        int i = sc.nextInt();
        c.remove(i-1);
        System.out.println("商品删除成功");

    }
    private static void show() {
        if(c.size() == 0) {
            System.out.println("目前没有商品可以查看");
        }else {
            System.out.println("目前现有的商品为：");
            for(Phone phone :c) {
                System.out.println(phone);
            }
        }

    }
    private static void add() {
        System.out.println("您是否录入商品？");
        String choice = sc.next();
        if("yes".equals(choice)) {
            System.out.println("请输入商品的名称：");
            String name = sc.next();
            System.out.println("请输入商品的颜色：");
            String color = sc.next();
            System.out.println("请输入商品的价格：");
            int price = sc.nextInt();
            System.out.println("请输入商品的数量：");
            int num = sc.nextInt();
            Phone p = new Phone(name,color,price,num);
            c.add(p);
            System.out.println("商品入库成功");
        }else {
            return;
        }
    }
}

效果呈现