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Why not infer template parameter from constructor?
...mple: why can't the compiler infer template parameters from class constructors, much as it can do from function parameters? For example, why couldn't the following code be valid:
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Java : How to determine the correct charset encoding of a stream
... the following thread:
Java App : Unable to read iso-8859-1 encoded file correctly
15 Answers
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Why does Stream not implement Iterable?
...s reusability, whereas Stream is something that can only be used once — more like an Iterator.
If Stream extended Iterable then existing code might be surprised when it receives an Iterable that throws an Exception the
second time they do for (element : iterable).
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How do I exit the Vim editor?
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Hit the Esc key to enter "Normal mode". Then you can type : to enter "Command-line mode". A colon (:) will appear at the bottom of the screen and you can type in one of the following commands. To execute a command, press the Enter key.
:q to quit (s...
Possible to iterate backwards through a foreach?
I know I could use a for statement and achieve the same effect, but can I loop backwards through a foreach loop in C#?
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Creating C formatted strings (not printing them)
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Use sprintf.
int sprintf ( char * str, const char * format, ... );
Write formatted data to string Composes a string with the same text
that would be printed if format was used on printf, but instead of
being printed, the content is stored as a C string in the buffer
pointed b...
Conditional compilation and framework targets
There are a few minor places where code for my project may be able to be drastically improved if the target framework were a newer version. I'd like to be able to better leverage conditional compilation in C# to switch these as needed.
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Can you split a stream into two streams?
...only be operated over once.
However, if you want to dump them into a list or something, you could do
stream.forEach((x) -> ((x == 0) ? heads : tails).add(x));
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git add, commit and push commands in one?
...lows you to pass it an argument. I have added the following to my .bashrc (or .bash_profile if Mac):
function lazygit() {
git add .
git commit -a -m "$1"
git push
}
This allows you to provide a commit message, such as
lazygit "My commit msg"
You could of course beef this up even m...
Parsing JSON Object in Java [duplicate]
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I'm assuming you want to store the interestKeys in a list.
Using the org.json library:
JSONObject obj = new JSONObject("{interests : [{interestKey:Dogs}, {interestKey:Cats}]}");
List<String> list = new ArrayList<String>();
JSONArray arr...