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Java FileOutputStream Create File if not exists
Is there a way to use FileOutputStream in a way that if a file (String filename) does not exist, then it will create it?
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Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
TL;DR: I am looking for a complete working sample of what I'll refer to as "the Gmail three-fragment animation" scenario. Specifically, we want to start with two fragments, like this:
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How to Free Inode Usage?
I have a disk drive where the inode usage is 100% (using df -i command).
However after deleting files substantially, the usage remains 100%.
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Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...或者搜索某段日志，需要登陆多台服务器，执行多个tail -F和grep命令。一方面这很被动。另一方面，效率非常低，数次操作下来，程序员的心情也会变糟（我还要去维护宇宙和平的好嘛）。
这篇文章讲的就是如何解决分布式系...
How can I calculate an md5 checksum of a directory?
I need to calculate a summary md5 checksum for all files of a particular type ( *.py for example) placed under a directory and all sub-directories.
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How to extract a git subdirectory and make a submodule out of it?
... my main directory "Project" there are several subdirectories containing different things:
Project/paper contains a document written in LaTeX
Project/sourcecode/RailsApp contains my rails app.
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How do I get the current date in JavaScript?
...day.getMonth() + 1).padStart(2, '0'); //January is 0!
var yyyy = today.getFullYear();
today = mm + '/' + dd + '/' + yyyy;
document.write(today);
This will give you today's date in the format of mm/dd/yyyy.
Simply change today = mm +'/'+ dd +'/'+ yyyy; to whatever format you wish.
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Why are regular expressions so controversial? [closed]
When exploring regular expressions (otherwise known as RegEx-es), there are many individuals who seem to see regular expressions as the Holy Grail. Something that looks so complicated - just must be the answer to any question. They tend to think that every problem is solvable using regular express...
Rails: Custom text for rails form_for label
I want to display a label in form_for :
3 Answers
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