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Why would an Enum implement an Interface?
I just found out that Java allows enums to implement an interface. What would be a good use case for that?
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sed command with -i option failing on Mac, but works on Linux
I've successfully used the following sed command to search/replace text in Linux:
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The tilde operator in Python
What's the usage of the tilde operator in Python?
7 Answers
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Select random lines from a file
In a Bash script, I want to pick out N random lines from input file and output to another file.
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Does a `+` in a URL scheme/host/path represent a space?
I am aware that a + in the query string of a URL represents a space. Is this also the case outside of the query string region? That is to say, does the following URL:
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How do I format a string using a dictionary in python-3.x?
I am a big fan of using dictionaries to format strings. It helps me read the string format I am using as well as let me take advantage of existing dictionaries. For example:
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Insert current date in datetime format mySQL
I'm having problems getting the date inserted properly into my database.
15 Answers
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Drawing a line/path on Google Maps
I've been busy for a long time finding out how to draw a line between two (GPS) points on the map in HelloMapView but with no luck.
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What is the bit size of long on 64-bit Windows?
Not to long ago, someone told me that long are not 64 bits on 64 bit machines and I should always use int . This did not make sense to me. I have seen docs (such as the one on Apple's official site) say that long are indeed 64 bits when compiling for a 64-bit CPU. I looked up what it was on 64-...
C++ stl stack/queue 的使用方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ stl stack/queue 的使用方法1、stackstack 模板类的定义在<stack>头文件中。stack 模板类需要两个模板参数，一个是元素类型，一个容器类型，但只有元素类型是必要的...1、stack
stack 模板类的定义在<stack>头文件中。
stack 模板类需要...