Excel Sheet Column Title

Given a positive integer, return its corresponding column title as appear in an Excel sheet.

For example:

    1 -> A
    2 -> B
    3 -> C
    ...
    26 -> Z
    27 -> AA
    28 -> AB 

public class Solution {
    public String convertToTitle(int n) {
        String result="";
        while(n!=0){
            String a="";
            int temp=n%26;
            if(temp==0){
                a=String.valueOf('Z');
                n=n-26;
            }
            else{
                a=String.valueOf((char)(temp-1+'A'));
            }
            result=a+result;
            n=n/26;
                
        }
        return result;
    }
}