字符串数组去重

String fdbs = "WXB,WXA,FDA,WXB";
    String[] str = fdbs.split(",");
    Set set = new HashSet();
    for (int i = 0; i < str.length; i++) {
        set.add(str[i]);
    }
    str = (String[]) set.toArray(new String[0]);
    for (int i = 0; i < str.length; i++) {
        System.out.println(str[i]);
    }