java编程汽水_[原创]JAVA解决喝汽水问题

问题：一瓶汽水单价2.5元，四个瓶盖或者两个瓶子可以换取一瓶汽水。给定金额得出一共能喝几瓶汽水？

实现：

#cat drink.java

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class drink {

public static void main(String[] args){

System.out.println("汽水单价为2.5元,四个瓶盖或者两个空瓶可以换取一瓶汽水。请输入您购买的金额: ");

InputStreamReader isr = new InputStreamReader(System.in);

BufferedReader br = new BufferedReader(isr);

double money = 0.0;

try {

money = Double.valueOf(br.readLine()).doubleValue();

} catch (IOException e) {

e.printStackTrace();

}

System.out.println("您购买汽水的金额是: " + money);

double n = money / 2.5;

int num = (int)n;

int gaizi = num;

int kongping = num;

while (gaizi >= 4 || kongping >= 2) {

int i = (gaizi / 4) + (kongping / 2);

num = num + i;

gaizi = gaizi % 4 + i;

kongping = kongping % 2 + i;

}

System.out.println("您一共可以喝到的汽水数量是: " + num + ",剩余盖子数: " + gaizi

+ ",剩余空瓶数: " + kongping);

}

}

效果图略。