java商品类的代码 java设计一个商品类

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mob6454cc7203e2 2023-08-02 10:52:24

文章标签 java商品类的代码 eclipse 经验分享 System List 文章分类 Java 后端开发

基于字符界面设计。主菜单包括：展示商品列表、添加商品、修改商品、删除商品、查询商品、退出。

先放上代码段，代码段后我会放上图文注释。

PartA类

package ShangPinSystem;

public class PartA {
	private String DDid;
	private String DDname;
	private String DDprice;
	private int DDhow;
	private double DDall;
	private boolean DDbad;
	
	public String getDDid() {
		return DDid;
	}

	public void setDDid(String dDid) {
		DDid = dDid;
	}

	public String getDDname() {
		return DDname;
	}

	public void setDDname(String dDname) {
		DDname = dDname;
	}

	public String getDDprice() {
		return DDprice;
	}

	public void setDDprice(String dDprice) {
		DDprice = dDprice;
	}

	public int getDDhow() {
		return DDhow;
	}

	public void setDDhow(int dDhow) {
		DDhow = dDhow;
	}

	public double getDDall() {
		return DDall;
	}

	public void setDDall(double dDall) {
		DDall = dDall;
	}

	public boolean isDDbad() {
		return DDbad;
	}

	public void setDDbad(boolean dDbad) {
		DDbad = dDbad;
	}

	public PartA(String dDid, String dDname, String dDprice, int dDhow, double dDall, boolean dDbad) {
		super();
		DDid = dDid;
		DDname = dDname;
		DDprice = dDprice;
		DDhow = dDhow;
		DDall = dDall;
		DDbad = dDbad;
	}

	public PartA() {
		super();
	}

	@Override
	public String toString() {
		return "商品信息:"+DDid+","+DDname+","+DDprice+","+DDhow+","+DDall+","+DDbad;
	}
}

PartB类

package ShangPinSystem;

import java.util.List;

public class PartB {
	public static boolean add(PartA d, List<PartA> dds) {
		boolean f = true;
		for (PartA dingdan : dds) {
			if (d.getDDid().equals(dingdan.getDDid())) {
				f = false;
				break;
			}
		}
		if (f)
			dds.add(d);
		return f;
	}

	public static boolean modify(PartA d, List<PartA> dds) {
		boolean f = false;
		for (PartA dingdan : dds) {
			if (d.getDDid().equals(dingdan.getDDid())) {
				f=true;
				dingdan.setDDname(d.getDDname());
				dingdan.setDDprice(d.getDDprice());
				dingdan.setDDhow(d.getDDhow());
				dingdan.setDDall(d.getDDall());
				dingdan.setDDbad(d.isDDbad());
				break;
			}
		}
		return f;
	}

	public static boolean delete(String id, List<PartA> dds) {
		boolean f = false;
		for (PartA dingdan : dds) {
			if (dingdan.getDDid().equals(id)) {
				dds.remove(dingdan);
				f=true;
				break;
			}
		}
		return f;
	}

	public static PartA select(String id, List<PartA> dds) {
		PartA p = null;
		for (PartA dingdan : dds) {
			if (dingdan.getDDid().equals(id)) {
				p = dingdan;
				break;
			}
		}
		return p;
	}

	public static void show(List<PartA> dds) {
		for (PartA dingdan : dds) {
			System.out.println(dingdan);
		}		
	}
}

PartC类

package ShangPinSystem;

public class PartC {
private String DDsolId;	
private String DDsoldName;
private int DDsoldHow;

public String getDDsolId() {
	return DDsolId;
}

public void setDDsolId(String dDsolId) {
	DDsolId = dDsolId;
}

public String getDDsoldName() {
	return DDsoldName;
}

public void setDDsoldName(String dDsoldName) {
	DDsoldName = dDsoldName;
}

public int getDDsoldHow() {
	return DDsoldHow;
}

public void setDDsoldHow(int dDsoldHow) {
	DDsoldHow = dDsoldHow;
}

public PartC(String dDsolId, String dDsoldName, int dDsoldHow) {
	super();
	DDsolId = dDsolId;
	DDsoldName = dDsoldName;
	DDsoldHow = dDsoldHow;
}

public PartC() {
	super();
}

@Override
public String toString() {
	return "已卖出："+DDsolId+","+DDsoldName+","+DDsoldHow;
}
}

PartD类

package ShangPinSystem;

import java.util.List;

public class PartD {

	public static boolean add2(PartC d2, List<PartC> dds2) {
		boolean f = true;
		for (PartC dingdan2 : dds2) {
			if (d2.getDDsolId().equals(dingdan2.getDDsolId())) {
				f = false;
				break;
			}
		}
		if (f)
			dds2.add(d2);
		return f;
	}

	public static boolean modify2(PartC d2, List<PartC> dds2) {
		boolean f = false;
		for (PartC dingdan2 : dds2) {
			if (d2.getDDsolId().equals(dingdan2.getDDsolId())) {
				f=true;
				dingdan2.setDDsolId(d2.getDDsolId());
				dingdan2.setDDsoldName(d2.getDDsoldName());
				dingdan2.setDDsoldHow(d2.getDDsoldHow());
				break;
			}
		}
		return f;
	}

	public static boolean delete2(String id2, List<PartC> dds2) {
		boolean f = false;
		for (PartC dingdan2 : dds2) {
			if (dingdan2.getDDsolId().equals(id2)) {
				dds2.remove(dingdan2);
				f=true;
				break;
			}
		}
		return f;
	}
	
	public static void show2(List<PartC> dds2) {
		for (PartC dingdang2 : dds2) {
			System.out.println(dingdang2);
		}
	}
}

App类

package ShangPinSystem;

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

public class App {
	static List<PartA> dds = new ArrayList<PartA>();
	static List<PartC> dds2 = new ArrayList<PartC>();
	static Scanner read = new Scanner(System.in);

	public static void main(String[] args) {
		dds.add(new PartA("01", "饼干", "13.00", 50, 650, true));
		dds.add(new PartA("02", "汽水", "03.00", 50, 150, false));
		dds.add(new PartA("03", "香烟", "10.00", 50, 500, false));
		dds2.add(new PartC("01","饼干", 10));
		dds2.add(new PartC("02","汽水",20));
		dds2.add(new PartC("03","香烟",50));

		int n = 0;
		int how;
		int soldHow;
		String id, name, price;
		String soldID,soldName;
		double all;
		boolean f;
		boolean bad;
		PartA p;
		PartC p2;

		do {
			System.out.println("欢迎使用229商品管理系统");
			System.out.println("-----添加商品请输入：1");
			System.out.println("-----修改商品请输入：2");
			System.out.println("-----删除商品请输入：3");
			System.out.println("-----查询商品请输入：4");
			System.out.println("展示所有商品列表请输入：5");
			System.out.println("添加商品卖出状态请输入：6");
			System.out.println("修改商品卖出状态请输入：7");
			System.out.println("删除商品卖出状态请输入：8");
			System.out.println("展示商品卖出状态请输入：9");
			System.out.println("退出：0");
			System.out.print("请选择：");
			n = read.nextInt();
			switch (n) {
			case 1:
				System.out.println("请输入新商品的订单号：");
				id = read.next();
				System.out.println("请输入新商品的商品名：");
				name = read.next();
				System.out.println("请输入新商品的商品价格：");
				price = read.next();
				System.out.println("请输入新商品的商品数量：");
				how = read.nextInt();
				System.out.println("请输入新商品的商品总价：");
				all = read.nextDouble();
				System.out.println("请输入新商品的商品是否有损坏：");
				bad = read.nextBoolean();
				p = new PartA(id, name, price, how, all, bad);
				f = PartB.add(p, dds);
				if (f)
					System.out.println("添加成功");
				else
					System.out.println("添加失败");
				break;
			case 2:
				System.out.println("请输入要修改的商品订单号：");
				id = read.next();
				System.out.println("请输入要修改的商品名：");
				name = read.next();
				System.out.println("请输入要修改的商品价格：");
				price = read.next();
				System.out.println("请输入要修改的商品数量：");
				how = read.nextInt();
				System.out.println("请输入要修改的商品总价：");
				all = read.nextDouble();
				System.out.println("请输入要修改的商品是否有损坏：");
				bad = read.nextBoolean();
				p = new PartA(id, name, price, how, all, bad);
				f = PartB.modify(p, dds);
				if (f)
					System.out.println("修改成功");
				else
					System.out.println("修改失败");
				break;
			case 3:
				System.out.println("请输入要删除的商品订单号：");
				id = read.next();
				f = PartB.delete(id, dds);
				if (f)
					System.out.println("删除成功");
				else
					System.out.println("删除失败");
				break;
			case 4:
				System.out.println("请输入要查询的商品订单号：");
				id = read.next();
				p = PartB.select(id, dds);
				if (p != null)
					System.out.println(p);
				else
					System.out.println("没有此商品");
				break;
			case 5:
				System.out.println("所有商品信息为：");
				System.out.println("----订单号 商品名 价格  数量  总价  是否有损坏");
				PartB.show(dds);	
				break;
			case 6:
				System.out.println("请输入新卖出商品的订单号：");
				soldID = read.next();
				System.out.println("请输入新卖出商品的商品名：");
				soldName = read.next();
				System.out.println("请输入新卖出商品的数量：");
				soldHow = read.nextInt();
				p2 = new PartC(soldID,soldName,soldHow);
				f = PartD.add2(p2, dds2);
				if (f)
					System.out.println("添加成功");
				else
					System.out.println("添加失败");
				break;
			case 7:
				System.out.println("请输入要修改卖出商品的订单号：");
				soldID = read.next();
				System.out.println("请输入要修改卖出商品的商品名：");
				soldName = read.next();
				System.out.println("请输要修改卖出商品的数量：");
				soldHow = read.nextInt();
				p2 = new PartC(soldID,soldName,soldHow);
				f = PartD.modify2(p2, dds2);
				if (f)
					System.out.println("修改成功");
				else
					System.out.println("修改失败");
				break;
			case 8:
				System.out.println("请输入要删除的卖出商品订单号：");
				soldID = read.next();
				f = PartD.delete2(soldID, dds2);
				if (f)
					System.out.println("删除成功");
				else
					System.out.println("删除失败");
				break;
			case 9:
				System.out.println("已卖出：");
				System.out.println("---订单号 商品名 数量");
				PartD.show2(dds2);
				break;
			}
		} while (n != 0);
	}
}

因为老师要求代码段300行，所以我加上了商品卖出系列功能来凑数(其实我算过不加这个功能刚好可以到300行，但是又觉得刚好300行可能有点尴尬，所以还是加了这个功能，嘿嘿)

图示

java商品类的代码 java设计一个商品类_java商品类的代码