LeedCode 之 Integer to Roman

来源：互联网发布：数据库接口怎么写编辑：程序博客网时间：2024/06/05 09:47

题目链接：Integer to Roman
这道题是将阿拉伯数字转罗马数字，只要找到两种数字之间的转换规律，就可以了~
上网查了下相关资料和思路，参考了一下博客：
https://my.oschina.net/Tsybius2014/blog/486752
阿拉伯数字转罗马数字有以下规律：
这里写图片描述
因此读取阿拉伯数字的每位上的数字，将其转为相应的罗马数字即可。
代码如下：

public class IntegertoRoman {    public String intToRoman(int num) {        String result;        String[][] roman ={ {"","I","II","III","IV","V","VI","VII","VIII","IX"},                            {"","X","XX","XXX","XL","L","LX","LXX","LXXX","XC"},                            {"","C","CC","CCC","CD","D","DC","DCC","DCCC","CM"},                            {"","M","MM","MMM"},};        result = roman[3][num/1000] + roman[2][num%1000/100] + roman[1][num%100/10] + roman[0][num%10];        System.out.println(result);        return result;    }}

阅读全文

0 0