java-面向对象-疯狂购物节shopping

java-面向对象-疯狂购物节shopping


题目描述:疯狂购物节,许多用户需要购买多种家用小电器,考虑的家用小电器包括电风扇、电水壶、空气净化器和电吹风。设计并实现一个用户挑选、购买家用小电器的应用程序。(可视化界面实现在下一个博客噢)

|・ω・`)


java-面向对象-疯狂购物节shopping_第1张图片(介里是这个包的所有源程序)

package oo;
//goods.class
public class goods {
	public int stock;
	public double price;
	public int number;//需要购买的数量
	
	goods(int sto,double pri,int num)
	{
		stock=sto;
		price=pri;
		number=num;
	}
	public boolean not_empty ()
	{
		if (this.stock!=0)  return true;
		else return false;
	}
}
package oo;
import javax.swing.JOptionPane;

/*
shopping.class
 */
//电风扇20元库存(实例变量)10个,电水壶10.5元库存15个,净化器30元库存16个,电吹风20.3元库存30个

public class shopping {
	public static double payment;
	static goods fanner=new goods(10,20,1);
	static goods kettle=new goods(15,10.5,1);
	static goods purifier =new goods(16,30,1);
	static goods hair_drier=new goods(30,20.3,1);
	
	
	public  static void main(String args[])
	{
		payment=0;
		int num_fanner=0,num_kettle=0,num_purifier=0,num_hair_drier=0;
		
		
		
		if(fanner.stock>0){
			String number_fanner=JOptionPane.showInputDialog("电风扇,每个20.0rmb;选购则输入想购买的商品数目,不选按0");
			num_fanner=Integer.parseInt(number_fanner);
			if(num_fanner!=0)
			{
				if(fanner.stock>=num_fanner){
					payment+=num_fanner*20.0;	
				}
			}
		}
		
		if(kettle.stock>0){
			String number_kettle=JOptionPane.showInputDialog("电水壶,每个10.5rmb;选购则输入想购买的商品数目,不选按0");
			num_kettle=Integer.parseInt(number_kettle);
			if(num_kettle!=0)
			{
				if(kettle.stock>=num_kettle){
					payment+=num_kettle*10.5;
				}
			}
		}
		
		if(purifier.stock>0){
			String number_purifier=JOptionPane.showInputDialog("净化器,每个30.0rmb;选购则输入想购买的商品数目,不选按0");
			num_purifier=Integer.parseInt(number_purifier);
			if(num_purifier!=0)
			{
				if(purifier.stock>=num_purifier){
					payment+=num_purifier*30.0;
				}
			}
		}

		if(hair_drier.stock>0){
			String number_hair_drier=JOptionPane.showInputDialog("电吹风,每个20.3rmb;选购则输入想购买的商品数目,不选按0");
			num_hair_drier=Integer.parseInt(number_hair_drier);
			if(num_hair_drier!=0)
			{
				if(hair_drier.stock>=num_hair_drier){
					payment+=num_hair_drier*20.3;
				}
			}
		}
		
		System.out.println("尊敬的顾客您好!"+"\n"+"您选购的商品有"
		                   +" 电风扇"+num_fanner+"个"
				           +" 电水壶"+num_kettle+"个"
		                   +" 净化器"+num_purifier+"个"
		                   +" 电吹风"+num_hair_drier+"个"+"\n"
		                   +"共需支付"+payment+"元");
	}	
}

运行结果是弹出的框框,让用户 输入每种商品的个数,然后控制台输出所购商品和总价格。

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