Question

这个怎么用JAVA写代码？

山上有一个水池可以装50升水，现在已经装了15升水。要装满这个水池，山农要下山挑水，每次挑5升。问：要挑多少次可以挑满？用编程解决这个问题！用循环WHILE写代码！
我新手详细点谢谢啊～！

Answer 1

为什么要用while呢？一句话就可以了呀 (50-15)/5
while写法如下：
int result = 0;
int total = 50-15;
while(total-(++result)*5>=0){}
System.out.println(result-1);

追问

题目要求啊～！

Answer 2

public class Test {

public static void main(String[] args) {
int sum = 15;
final int total = 50;

int count = 0;
while(sum < total){
sum = sum + 5;
count++;
}

System.out.println("Total " + count + " times needed.");
}
}

--------------------
Total 7 times needed.

Answer 3

public static void main(String[] args) {
int sum = 15;
final int total = 50;

int count = 0;
while(sum < total){
sum = sum + 5;
count++;
}

System.out.println("Total " + count + " times needed.");
}