public static String removeDuplicateCharacters(String string) {
        char[] chars = string.toCharArray();
        Set<Character> charSet = new LinkedHashSet<Character>();
        for (char c : chars) {
            charSet.add(c);
        }

        var sb = new StringBuilder();
        charSet.forEach((character) -> {
            sb.append(character);
        });
        return sb.toString();
    }
Extracts a zip entry (file entry)
@param zipIn
@param filePath
@throws IOException
core/src/com/ray3k/skincomposer/utils/Utils.java