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What is the relationship between Looper, Handler and MessageQueue in Android?
...in the context of GUI framework. Looper is made to do 2 things.
1) Looper transforms a normal thread, which terminates when its run() method returns, into something that runs continuously until Android app is running, which is needed in GUI framework (Technically, it still terminates when run() met...
How to add elements of a Java8 stream into an existing List
...ically modified, instead, new ones are created out of old ones by means of transformations such as map, filter, fold/reduce and many others.
If you must modify the old list, simply collect the mapped items into a fresh list:
final List<Integer> newList = list.stream()
...
PHP best way to MD5 multi-dimensional array?
...d integers use:
md5(json_encode($array));
4 built-in PHP functions can transform array to string:
serialize(), json_encode(), var_export(), print_r().
Notice: json_encode() function slows down while processing associative arrays with strings as values. In this case consider to use serialize(...
how to set “camera position” for 3d plots using python/matplotlib?
...otlib interactively. But how can I do this from a script?
I found a lot of transforms in mpl_toolkits.mplot3d.proj3d but I could not find out how to use these for my purpose and I didn't find any example for what I'm trying to do.
...
What are the pros and cons to keeping SQL in Stored Procs versus Code [closed]
...l too.
I can profile my data query/ persistence code separate from my data transformation code.
I can implement changeable conditions in my stored procedure and it would be easy to customize at a customer site.
It becomes easier to use some automated tools to convert my schema and statements togeth...
App Inventor 2 项目合并工具 AIMerge · App Inventor 2 中文网
... 项目合并工具
本文档最初由米尔斯学院（Mills College）的 Kate Feeney 为 AI Classic 编写。该计划在她的论文通过 App Inventor 鼓励协作 中进行了讨论。
该工具作为 Java 程序在 App Inventor 外部运行，需要在计算机上安装 Java 才能使用...
How to style the option of an html “select” element?
...ant;
color: #fff !important;
background: #bc0000 !important;
text-transform: uppercase;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></...
Control the dashed border stroke length and distance between strokes
...d be very tricky with having to find points on a circle (and possibly even transform).
.dashed-box-shadow{
position: relative;
height: 120px;
width: 120px;
padding: 10px;
}
.dashed-box-shadow:before{ /* for border top and bottom */
position: absolute;
content: '';
top: 0...
foldl versus foldr behavior with infinite lists
...evaluating it.
So the two important points to note are these:
foldr can transform one lazy recursive data structure into another.
Otherwise, lazy folds will crash with a stack overflow on large or infinite lists.
You may have noticed that it sounds like foldr can do everything foldl can, plus m...
REST API Best practice: How to accept list of parameter values as input [closed]
...%2C%22Bags%22%5D%2C%22color%22%3A%5B%22Black%22%2C%22Red%22%5D%7D
Can be transformed to...
/Product?term=pumas&productType[]=Clothing&productType[]=Bags&color[]=Black&color[]=Red
Aside from avoiding the requirement of URL encoding and making things look a bit more standard, it n...