Stackremoveconsecutives

  public static void main(String[] args) {
        String a = "aaaaaabaabccccccc";
        System.out.println(removeConsecutiveDuplicates(a));
    }

    public static String removeConsecutiveDuplicates(String str) {
        // Your code here
        Stack<Character> stack = new Stack<>();
        String output = "";

        for (int i = 0; i < str.length(); i++) {
            if (stack.isEmpty()||str.charAt(i) != stack.peek()) {
                stack.push(str.charAt(i));
                output+=str.charAt(i);
            }
        }

        return output;
    }
}

//OUTPUT
//ababc