nested

nested hashmaps of unknown depth java

由 夙愿已清 提交于 2019-12-07 20:01:57
问题 I have a requirement in which I need to have an nested hashmap. But the depth would be decided at run time. E.g. If at runtime, user says 3, then my hashmap should be like HashMap<String, HashMAp<String, HashMap<String, String>>> if he says 4 then HashMap<String, HashMAp<String, HashMap<String, HashMap<String, String>>>> Is there any way to implement this kind of functionality? Some other API or toolkit?? 回答1: Oh, this is almost certainly a very bad idea. You sound like you really want a tree

LINQ to get Distinct Count/Sort in List<List<string>>

由 ε祈祈猫儿з 提交于 2019-12-07 19:24:30
I have a List<> that contains a List<string> , of which I need to determine the unique count from the List<string , and order by the frequency of the count. Example: "a","b","c" "d","e","f" "a","b" "a", "b", "c" "a", "b", "c" "a","b" This would output (rank / combination / frequency) 1 - "a", "b", "c" - 3 2 - "a", "b" - 2 3 "d", "e", "f" - 1 I can come up with a brute-force approach but can this be done more elegantly with LINQ? This isn't exactly a Cartesian approach from what I can tell. Thanks. NtFreX You could write your own IEqualityComparer and use it with GroupBy . public class

* foreach inside foreach codeigniter 2?

由 大城市里の小女人 提交于 2019-12-07 18:05:23
问题 In codeigniter 2.1 I'm trying to display channels by category. So if i have a category called Film, i should see a list of Channels within Film. I tried a nested foreach loop to accomplish this but can't seem to get it to work. My tables structure is something like this but more complicated: My model: <?php class Pages_model extends CI_Model { function get_channels_by_categ_tv() { $this->db->select('categories.category_name, channels.channel_name'); $this->db->from('type_categ'); $this->db-

Nested variable name using EnableDelayedExpansion

由 烈酒焚心 提交于 2019-12-07 18:01:30
I am working on a script to get max lengths of each column, I'm trying to store lengths of max length in _c1...n vars. number of columns unknown. I was able to get length for each column, create variables to store each with set _c!i! = !n!, n is the length but in order to set the max length for a particular column I need to compare current with max and use something like !_c!!i!! which doesn't work, any ideas how to refer a variable which part of it's name coming from another variable? Thanks... I assume that you are using the delayed expansion character because you are working inside a set of

Java: Deserializing JSON structure to Map<String, Object>

由 这一生的挚爱 提交于 2019-12-07 17:24:49
问题 I've got a JSON string that I want to convert to a Map structure where Object is either a Java version of a basic type (i.e. String, Int, Double), a Map. or a List. The sample string I'm using for my tests is: "{\"cases\":[{\"documents\":[{\"files\":[{\"name\":\"a.pdf\"}]}]}]}" This should read as an array of cases that each have an array of documents, that each have an array of files, that each have a name I've tried Google's Gson, but Gson gson = new Gson(); List<Map<String, Object>>

Ordered list CSS style includes parent number

由 旧城冷巷雨未停 提交于 2019-12-07 15:26:09
问题 We're looking to use CSS to create an ordered list that looks like this: A. A.1 A.2 B. C. C.1 C.2 C.2.1 C.2.2 How would you include the parent index in the child like this? 回答1: You should use CSS counters W3C specs ( as @Zeta ) has pointed out, but here is an approach that will handle multiple nesting and latin counters .. ol{ list-style: none; } ol.roman{ counter-reset: roman; } ol.roman > li:before{ counter-increment: roman; content: counter(roman, upper-latin)"."; padding-right:5px; } ol

How to read a file to a list of lists?

由 巧了我就是萌 提交于 2019-12-07 14:52:37
问题 I want to create a list of lists from a file that contains the following data: 101 Rahul 102 Julie 103 Helena 104 Kally CODE lis = [] with open("student_details.txt" , "r+") as f: for i in range(1,3,1): for data in f.read().split(): lis.append(data) print(lis) Output I Want [[101,Rahul] ,[102,Julie] ,[103,Helena] ,[104,Kally]] Output I m getting ['101', 'Rahul', '102', 'Julie', '103', 'Helena', '104', 'Kally'] 回答1: Your code: lis = [] with open("student_details.txt" , "r+") as f: for i in

iOS Nested UIScrollViews using AutoLayout

由 雨燕双飞 提交于 2019-12-07 13:15:46
问题 Above is an example of the layout of how my program should look. The screen should have a simple header view up top and the remaining space below it is used to display other content. This other content is basically 3 pages of stuff. The parent scrollview should display one page at a time but can scroll left or right using paging to get to the other ones. The problem is that each of these pages is going to have different heights. Also, by using paging in the parent view, vertical scrolling

Can't compile nested less files with Web Compiler 2015

由 萝らか妹 提交于 2019-12-07 12:39:20
问题 well, I was quite surprised when installing Web Essentials 2015 for Visual Studio 2015 that it didn't include a less compiler anymore: "Web Essentials 2015 no longer contains features for bundling and minifying of JS, CSS and HTML files as well as compiling LESS". Everything worked fine before with Visual Studio 2013. So I downloaded Web Compiler 2015, as it is the new compiler from Mads Kristensen. But, after adding all the needed files to be compiled to the compilerconfig.json, I have an

jquery: mouseout applies to nested elements

由 泄露秘密 提交于 2019-12-07 12:18:28
问题 ul with links nested in a div layer. mouse pointer goes over .title , ul is shown. the problem: mouseout() applies to nested elements mouseout() is for the div <div> <a class="title">Section A</a> <ul> <li><a href=''>link 1</a></li> <li><a href=''>link 2</a></li> <li><a href=''>link 3</a></li> </ul> </div> $('.title').mouseover(function() { $('ul').slideDown(); }) $('div').mouseout(function(){ $('ul').slideUp(); }); 回答1: Try $('selector').mouseleave(function(){}); 来源： https://stackoverflow
订阅 nested