remove consicutive duplicate

public class removeDuplicate {

    public static String removeDuplicate(String str){
        if(str.length() <= 1){
            return str;
        }


            String out = removeDuplicate(str.substring(1));
            if(str.charAt(0) == str.charAt(1)){
                return out;
            }
            else {
                return str.charAt(0) + out;
            }

    }

    public static void main(String[] args) {
        System.out.println(removeDuplicate("abacd"));
    }

}