Float.toString()和Integer.toString()如何工作? [英] how does Float.toString() and Integer.toString() works?

问题描述

如何实现将float或int转换为字符串的算法? 我找到一个链接 http://geeksforgeeks.org/forum/topic/amazon-interview-question-for-software-engineerdeveloper-0-2-years-about-algorithms-13

How can i implement an algorithm to convert float or int to string? I found one link http://geeksforgeeks.org/forum/topic/amazon-interview-question-for-software-engineerdeveloper-0-2-years-about-algorithms-13

但是我不明白那里给出的算法

but i cant understand the algorithm given there

推荐答案

在大多数字符编码中，数字0-9是顺序的，因此在其整数值之间进行旋转将有助于解决问题:

the numbers 0-9 are sequential in most character encoding so twiddling with the integral value of it will help here:

int val;
String str="";
while(val>0){
    str = ('0'+(val%10)) + str;
    val /= 10;
}

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