List及數組中 contains的用法

String flag;
1.判斷list中是否包含某個字符串
List<String> menuTreeTypes = proMenuService.getMenuTreeTypes(emp.getEmpId());
boolean contains = menuTreeTypes.contains(flag);
2.判斷數組中是否包含某個字符串
String[] empTypes = empType.split(",");
boolean contains = Arrays.asList(empTypes).contains(flag);