相关疑难解决方法(0)

我需要帮助来确定如何从字符串中删除重复字符.它必须以递归方式完成,这才是真正的问题.

public class FEQ2 {
    /**
     * @param args
     */
    public static void removeDups(String s, int firstChar, int secondChar) {    
        if (s.length() == 1) {  
            System.out.println(s);
        }           
        char a = s.charAt(firstChar);
        if (a == s.charAt(secondChar)) {
            s = a + s.substring(secondChar + 1);
        }
        System.out.println(s);
        removeDups(s, firstChar + 1, secondChar + 1);
        //return s;
    }

    public static void main(String[] args) {
        //System.out.println(removeDups("AAAABBARRRCC", 1));
        removeDups("AAAABBARRRCC", 0 , 1);
    }
}