大约有 47,000 项符合查询结果（耗时：0.0470秒） [XML]
How to convert a JSON string to a Map with Jackson JSON
...Although my original answer here, from many years ago, seems to be helpful and is still getting upvotes, I now use the GSON library from Google, which I find to be more intuitive.
I've got the following code:
public void testJackson() throws IOException {
ObjectMapper mapper = new ObjectMapper...
How to remove all the null elements inside a generic list in one go?
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@Mark: I saw the posted seconds and man it was close (32, 33, and 34). ;)
– Lance
Jun 18 '10 at 13:04
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Duplicate keys in .NET dictionaries?
...for you, I don't think there's anything in the framework which will help - and using the dictionary is as good as it gets :(
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How can I redirect the output of the “time” command?
I tried to redirect the output of the time command, but I couldn't:
7 Answers
7
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What are .a and .so files?
I'm currently trying to port a C application to AIX and am getting confused. What are .a and .so files and how are they used when building/running an application?
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Automate ssh-keygen -t rsa so it does not ask for a passphrase
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OK this was because I used dzdo command in front of it, so I had to write: dzdo -i -u target_user ssh-keygen -f id_rsa -t rsa -N "''"
– Anthony O.
Dec 9 '15 at 15:09
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instanceof Vs getClass( )
I see gain in performance when using getClass() and == operator over instanceOf operator.
4 Answers
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Compiling C++11 with g++
I'm trying to update my C++ compiler to C++11.
I have searched a bit and I have come to the conclusion that I have to use the flag -std=c++0x or -std=gnu++0x , but I don't know many things about flags. Can anyone help me? (I'm using Ubuntu 12.04.)
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Scala @ operator
... specifically, though I don't know where the "as usual" there came from -- and 8.12 only speak of regular expression pattern (_*). But maybe this has been clarified on a newer version of the spec.
– Daniel C. Sobral
Mar 2 '10 at 22:58
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Rename all files in directory from $filename_h to $filename_half?
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Just use bash, no need to call external commands.
for file in *_h.png
do
mv "$file" "${file/_h.png/_half.png}"
done
Do not add #!/bin/sh
For those that need that one-liner:
for file in *.png; do mv "$file" "${file/_h.png/_half.png}"; done
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