Thread: retrieve next character in alfabet

Hi guys,

New in Java so i have a lot of questions. Beginning with this one.

I'm trying to retrieve the next character of a character. A->B, B->C, ...., Z->A
using this code:

import java.util.*;
import java.text.*;
 
public class Letter
{
    private char letter;
 
    public Letter()
    {
        // initialise instance variables
        letter = 'A';
    }
 
    // Method
    public char getLetter()
    {
        return letter;
    }
 
    public char next(){
 
        int intChar;
 
        intChar = this.letter.charCodeAt();
 
    }
}

The idea is (example) to convert 'A' to ASCII code (65), increase it (66) and convert this to 'B'
I know char is a primitive type, not an object. I tried several things with Character. No succes. What is going wrong.
The compiler complains about .charCodeAt: char cannot be dereferenced

char values and variables can be used in arithmetic operations directly: 'a' + 1 = 'b'