Excel Sheet Column Title

Excel Sheet Column Title

Problem:

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

Ideas:

Inbound access issues

My Code:

 Public classSolution { PublicString Converttotitle (intN) {stringbuffer sb=NewStringBuffer (); if(n <= 0)returnsb.tostring ();  while(n! = 0) {sb.append (GetChar (n-1)%26)); N= (n-1)/26; }        returnsb.reverse (). toString (); }     Public CharGetChar (intnum) {        return(Char) (' A ' +num); }}

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Others code:

 Public class Solution {    public String converttotitle (int  n) {         new  StringBuilder ();          while (n>0)        {            result.append ((char) ((n-1)%26 + (int) ' A ');             = (n-1)/26;        }         return result.reverse (). toString ();    }}

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The Learning Place:

• In Java, char is two bytes, int is four bytes, so char to int to use the cast, often forget this point, have several times warning.
• usually with S + = part never wanted s = part + s So it can be easily implemented reverse, learning, concrete implementation in other people's code inside there.

Excel Sheet Column Title