Java-Integer to Roman

Given an integer, convert it to a roman numeral.

Input is guaranteed to be within the range from 1 to 3999.

将阿拉伯数字转换为罗马字符

建立一个二维数组来代表转换表 代码如下：

public class Solution {
    public String intToRoman(int num) {
        String[][] sss={{"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"}};
		String res="";
		String s=String.valueOf(num);
		for(int i=s.length()-1;i>=0;i--){
			if(s.charAt(i)=='0')continue;
			else{
				res=sss[s.length()-1-i][s.charAt(i)-'0'-1]+res;
			}
		}
		return res;
    }
}