品尝饮料java代码,基于java的饮品售卖系统

Java新建一个饮料类Drink？

介于进了好多个问题，都看到楼下，我就过来凑个回答数。

public class Drink{

private String name;

public Drink() {}

public Drink(String name) {

this.name = name;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public void print() {

System.out.println(" I am " + name);;

}

public static void main(String[] args) {

Drink drink = new Drink("可口可乐");

System.out.println(Drink.print());

}

}

相关问答

Q1: Java代码怎么写：有20块钱买汽水，1块一瓶，三盖子换一瓶，两空瓶换一瓶子，共能买多少汽水？

正确的结果：对兑了17次，共换了93个瓶子，第18次对兑时余下1个空瓶，2个瓶盖。

递归模型楼上“lzs丶灬 ”同志是正确的，但存在逻辑错误。我帮他修正如下：

   public static int test(int sum, int pingzi, int gaizi){

            if (pingzi  2  gaizi  3)

            {

                return sum;

            }

            int newPingzi = pingzi / 2;

            int newGaizi = gaizi / 3;

            sum += newPingzi;

            sum += newGaizi;

            pingzi = newPingzi + newGaizi + pingzi % 2;

            gaizi = newGaizi + newPingzi + gaizi % 3;

            return test(sum, pingzi, gaizi);

  }

Q2: 求解各位高手：用java解决品尝饮料问题

import java.util.ArrayList;

import java.util.List;

import javax.swing.JOptionPane;

import javax.swing.SwingUtilities;

public class Question {

class Drink{

protected String type;//苏打，果汁？

protected String name;//名字？

protected double price;//价格

public String getType() {

return type;

}

public double getPrice() {

return price;

}

public String getName() {

return name;

}

}

class Cole extends Drink{

public Cole(){

name = "可口可乐";

type = "苏打";

price = 6.0d;

}

}

class Putaoduo extends Drink{

public Putaoduo(){

name = "葡萄多";

type = "果汁";

price = 3.0d;

}

}

class Person{

private double money;

private ListDrink drinks = new ArrayListDrink();

public void buyDrink(Drink drink) throws QianBuGouException, Exception{

if(drink != null){

double price = drink.getPrice();

if(money = price){

drinks.add(drink);

if(price == 0){

throw new Exception("竟然有免费的饮料，好爽呀！");

}else if(price 0){

throw new Exception("竟然有倒贴的饮料，好爽呀！");

}

money -= price;

}else{

throw new QianBuGouException();

}

}

}

public void drink(Drink drink) throws DrinkNotFoundException{

if(drinks.contains(drink)){

drinks.remove(drink);

}else{

throw new DrinkNotFoundException("这瓶饮料不是我的！");

}

}

public double getMoney() {

return money;

}

public void setMoney(double money) {

this.money = money;

}

public ListDrink getDrinks() {

return drinks;

}

}

class QianBuGouException extends Exception{

public QianBuGouException(){

super("我的钱不够买饮料的啦，再买就破产了！");

}

}

class DrinkNotFoundException extends Exception{

public DrinkNotFoundException(String message){

super(message);

}

}

public Question(){

SwingUtilities.invokeLater(new Runnable() {

public void run() {

Person you = new Person();

you.setMoney(10d);

Cole cole = new Cole();

try{

you.drink(cole);

JOptionPane.showMessageDialog(null, "我喝了一瓶饮料", "提示信息", JOptionPane.ERROR_MESSAGE);

}catch(Exception e){

JOptionPane.showMessageDialog(null, e.getMessage(), "提示信息", JOptionPane.ERROR_MESSAGE);

}

try{

you.buyDrink(new Cole());

JOptionPane.showMessageDialog(null, "我买了一瓶饮料", "提示信息", JOptionPane.ERROR_MESSAGE);

}catch(Exception e){

JOptionPane.showMessageDialog(null, e.getMessage(), "提示信息", JOptionPane.ERROR_MESSAGE);

}

try{

you.drink(new Cole());

JOptionPane.showMessageDialog(null, "我喝了一瓶饮料", "提示信息", JOptionPane.ERROR_MESSAGE);

}catch(Exception e){

JOptionPane.showMessageDialog(null, e.getMessage(), "提示信息", JOptionPane.ERROR_MESSAGE);

}

try{

you.buyDrink(new Putaoduo());

JOptionPane.showMessageDialog(null, "我买了一瓶饮料", "提示信息", JOptionPane.ERROR_MESSAGE);

}catch(Exception e){

JOptionPane.showMessageDialog(null, e.getMessage(), "提示信息", JOptionPane.ERROR_MESSAGE);

}

try{

you.buyDrink(new Putaoduo());

JOptionPane.showMessageDialog(null, "我买了一瓶饮料", "提示信息", JOptionPane.ERROR_MESSAGE);

}catch(Exception e){

JOptionPane.showMessageDialog(null, e.getMessage(), "提示信息", JOptionPane.ERROR_MESSAGE);

}

try{

you.buyDrink(new Putaoduo());

JOptionPane.showMessageDialog(null, "我买了一瓶饮料", "提示信息", JOptionPane.ERROR_MESSAGE);

}catch(Exception e){

JOptionPane.showMessageDialog(null, e.getMessage(), "提示信息", JOptionPane.ERROR_MESSAGE);

}

try{

you.buyDrink(new Putaoduo());

JOptionPane.showMessageDialog(null, "我买了一瓶饮料", "提示信息", JOptionPane.ERROR_MESSAGE);

}catch(Exception e){

JOptionPane.showMessageDialog(null, e.getMessage(), "提示信息", JOptionPane.ERROR_MESSAGE);

}

ListDrink drinks = you.getDrinks();

int all = drinks.size();

for(int i = 0; i all; i ++){

Drink drink = drinks.get(0);

try{

you.drink(drink);

JOptionPane.showMessageDialog(null, "我喝了一瓶饮料", "提示信息", JOptionPane.ERROR_MESSAGE);

}catch(Exception e){

JOptionPane.showMessageDialog(null, e.getMessage(), "提示信息", JOptionPane.ERROR_MESSAGE);

}

}

JOptionPane.showMessageDialog(null, "我还有" + drinks.size() + "瓶饮料。", "提示信息", JOptionPane.ERROR_MESSAGE);

}

});

}

public static void main(String args[]){

new Question();

}

}

Q3: 用java模拟饮料自动售卖工作程序，如价格已知，投入高于它本事价格自动计算找零，低于会提示请继续投

下附代码，可以在键盘输入加入判断，比如是否输入的是数字而不是字母等等，是否输入的是正数而不是其他符号... 另外可以将下面代码优化，封装，在main方法只做调用即可

package test;

import java.util.Scanner;

public class test {

public static void main(String[] args) {

boolean flag = true;

while(flag){

System.out.println("欢迎使用自动饮料售卖机");

System.out.println("1.雪碧 3.00");

System.out.println("2.可乐 3.00");

System.out.println("3.特仑苏 5.00");

System.out.println("4.农夫山泉 2.00");

@SuppressWarnings("resource")

Scanner input = new Scanner(System.in);

System.out.print("请输入你的选择是：");

int choise = input.nextInt();

System.out.print("请投币:");

int money = input.nextInt();

money(money, choise);

System.out.print("是否继续'1.继续 0.退出' :");

int goon = input.nextInt();

if(goon==1){

flag = true;

}else{

flag = false;

}

}

}

public static void money(int money,int choise){

switch(choise){

case 1:

if(money-30){

System.out.println("找零"+(money-3)+"元");

}else if(money-30){

System.out.println("请再投入"+(3-money)+"元");

}else if(money-3==0){

System.out.println("生活愉快");

}else{

System.out.println("输入有误！");

}

break ;

case 2:

if(money-30){

System.out.println("找零"+(money-3)+"元");

}else if(money-30){

System.out.println("请再投入"+(3-money)+"元");

}else if(money-3==0){

System.out.println("生活愉快");

}else{

System.out.println("输入有误！");

}

break ;

case 3:

if(money-50){

System.out.println("找零"+(money-5)+"元");

}else if(money-50){

System.out.println("请再投入"+(5-money)+"元");

}else if(money-5==0){

System.out.println("生活愉快");

}else{

System.out.println("输入有误！");

}

break ;

case 4:

if(money-20){

System.out.println("找零"+(money-2)+"元");

}else if(money-20){

System.out.println("请再投入"+(2-money)+"元");

}else if(money-2==0){

System.out.println("生活愉快");

}else{

System.out.println("输入有误！");

}

break ;

}

}

}