JAVA8新特性之两集合求差集

//字符串转数组
String[] split = ticketType1.split(",");
 //两集合求差集
List<String> reduce2 = Arrays.asList(split).stream().filter(item -> !Arrays.asList(ticketType.split(",")).contains(item)).collect(Collectors.toList());
 //集合转数组
String[] strings = new String[reduce2.size()];
 String[] strings1 = reduce2.toArray(strings);
 //数组转字符串
String s = ArrayUtils.toString(strings1);
baseTicket.setTicketType(s);

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