Excel Sheet Column Title

 1 package leetcode;
 2 
 3 import java.util.Stack;
 4 
 5 public class Solution 
 6 {
 7 
 8     public static String convertToTitle(int n) 
 9     {
10         Stack<Character> sk = new Stack<Character>();
11         while(n/26!=0)
12         {
13                 int m=n%26;
14                 if(m==0)
15                     m+=26;
16                 sk.push((char)(‘A‘+m-1));
17                 if(n%26==0)
18                     n=n/26-1;
19                 else
20                     n=n/26;
21         }
22         if(n<26&&n!=0)
23             sk.push((char)(‘A‘+n-1));
24         String t="";
25         while(!sk.isEmpty())
26             t=t+sk.pop();
27         return t;
28     }
29     public static void main(String args[])
30     {
31         System.out.println(convertToTitle(26));
32     }
33 }