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Why doesn't “System.out.println” work in Android?
I want to print something in console, so that I can debug it. But for some reason, nothing prints in my Android application.
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Android: Go back to previous activity
I want to do something simple on android app.
How is it possible to go back to a previous activity.
23 Answers
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Using the scrollwheel in GNU screen
How can I setup GNU screen to allow the mouse's scrollwheel to scroll around in the scrollback buffer? I tried to Google about this, but most hits were on how to allow applications inside screen to use the scrollwheel.
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Tomcat: How to find out running tomcat version
I'm trying to get Appfuse + tomcat + jRebel working.
27 Answers
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Linux 进程卡住了怎么办？ - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...的进程状态显示为 D。
man ps 中描述 D 状态是 Uninterruptible Sleep。
Linux 进程有两种睡眠状态：
Interruptible Sleep，可中断睡眠，在 ps 命令中显示 S。处在这种睡眠状态的进程是可以通过给它发送信号来唤醒的。
Uninterruptible Sleep...
What's the best UI for entering date of birth? [closed]
...ser knows the date format, it is very fast. For a not so advanced user I suggest using a datepicker. Since usually you also have advanced and non-advanced users I suggest a combination of text input and datepicker.
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What purpose does a tag serve inside of a tag?
I've been on a "view source" spree lately on websites with interesting design and content. One of those websites, Squarespace , has blocks of <script> tags inside of a <noscript> tag, like so:
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Really Cheap Command-Line Option Parsing in Ruby
EDIT: Please, please , please read the two requirements listed at the bottom of this post before replying. People keep posting their new gems and libraries and whatnot, which clearly don't meet the requirements.
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C# nullable string error
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System.String is a reference type and already "nullable".
Nullable<T> and the ? suffix are for value types such as Int32, Double, DateTime, etc.
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Example of UUID generation using Boost in C++
I want to generate just random UUID's, as it is just important for instances in my program to have unique identifiers. I looked into Boost UUID , but I can't manage to generate the UUID because I don't understand which class and method to use.
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