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What is an unsigned char?

...) is required to be 1 (i.e. one byte), but a byte could in theory be for example 32 bits. sizeof would still be report its size as 1 - meaning that you could have sizeof (char) == sizeof (long) == 1. share | ...
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ActionBar text color

...ative): Just use html to set the title, and specify the text color. For example, to set the ActionBar text color to red, simply do this: getActionBar()/* or getSupportActionBar() */.setTitle(Html.fromHtml("<font color=\"red\">" + getString(R.string.app_name) + "</font>")); You can al...
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How to identify unused css definitions

...sed CSS selectors. This software costs 80 USD. Liquidcity CSS cleaner is a php script that uses regular expressions to check the styles of one page. It will tell you the classes that aren't available in the HTML code. I haven't tested this solution. Deadweight is a CSS coverage tool. Given a set of ...
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Statistics: combinations in Python

... @robertking - Ok, you were both petty and technically correct. What i did was meant as illustration of how to write one's own function; i knew it is not accurate for big enough N and K due to floating point precision. But we can fix that - see above, now it should not err f...
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Formatting Decimal places in R

I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to screen (or written to a file). How does one do that? ...
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TCPServer TCP服务器扩展:在Android设备上创建TCP服务器 · App Inventor 2 中文网

...,并通过 TCP 逐行交换文本消息。消息以行分隔符(CR、LF 或 CRLF)结束。服务器接受客户端连接,一旦建立连接就可以进行双向数据传输。 主要功能 在 Android 设备上创建 TCP 服务器 接受多个客户端连接 ...
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How to import existing *.sql files in PostgreSQL 8.4?

I am using PostgreSQL 8.4, and I have some *.sql files to import into a database. How can I do so? 5 Answers ...
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UITableView with fixed section headers

...sticky: change the table view's style - make it grouped for not sticky & make it plain for sticky section headers - do not forget: you can do it from storyboard without writing code. (click on your table view and change it is style from the right Side/ component menu) if you have extra compon...
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Haskell Type vs Data Constructor

...erstanding type constructors and data constructors. For example, I don't really understand the difference between this: 6 A...
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What's the difference between => , ()=>, and Unit=>

I'm trying to represent a function that takes no arguments and returns no value (I'm simulating the setTimeout function in JavaScript, if you must know.) ...