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What is the tilde (~) in the enum definition?
...y it's less error-prone. Like: if you store the value in a database/binary file and then add another flag to the enumeration, it'd be included in the 'All' which means that 'All' will always mean all, and not just as long as the flags are the same :).
– Aidiakapi
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org.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for
...say)
I found out that it is due to inconsistency in annotating the methods/fileds.
when you are annotating @ID on variable make sure all other annotations are also done on variable only
and when you are annotating it on getter method same make sure you are annotating all other getter methods only a...
Why is “a” != “a” in C?
...haracter) you use the convenience function strcmp found in standard header file string.h. The function has a return value of 0 for equal strings; it's considered good practice to explicitly compare the return value to 0 instead of using the operator `!´, i.e.
strcmp(str1, str2) == 0 // instead of ...
Chrome debugging - break on next click event
... Is there a way to catch clicks but limit the breakpoint to only a certain file or directory and not, say, various obfuscated libraries and Chrome extensions?
– Artem Russakovskii
Jul 23 '19 at 22:34
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Can I use the range operator with if statement in Swift?
...function. - Unfortunately, Xcode cannot yet create assembly code for Swift files, perhaps it will work in a later version.
– Martin R
Jul 22 '14 at 17:58
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How to insert a newline in front of a pattern?
... and was having problems with a ^M caret M (ctrl+m) getting written to the file. I ended up using perl with the same params.
– Steve Tauber
May 25 '13 at 1:11
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Custom Drawable for ProgressBar/ProgressDialog
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I used the following for creating a custom progress bar.
File res/drawable/progress_bar_states.xml declares the colors of the different states:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
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Broken references in Virtualenvs
I recently installed a bunch of dotfiles on my Mac along with some other applications (I changed to iTerm instead of Terminal, and Sublime as my default text editor) but ever since, all my virtual environments have stopped working, although their folders inside .virtualenvs are still there and they ...
CSS: Setting width/height as Percentage minus pixels
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Also if you use Less you'd better compile a file with lessc --strict-math=on in order less not to evaluate the expression inside the calc -- just a problem I faced and spent a lot of time (as of Less 2.0.0)
– Dmitry Wojciechowski
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新浪是如何分析处理32亿条实时日志的？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...开启了超线程；System Level的优化如关闭swap，调整max open files等；App Level的优化如Java运行环境版本的选择，ES_HEAP_SIZE的设置，修改bulk index的queue size等，另外还设置了默认的index template，目的是更改默认的shard，replica数并将string改...