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How do you return a JSON object from a Java Servlet
...haracterEncoding("UTF-8");
response.getWriter().write(json);
}
That's all.
See also:
How to use Servlets and Ajax?
What is the correct JSON content type?
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Difference between CPPFLAGS and CXXFLAGS in GNU Make
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By default, CPPFLAGS will be given to the C preprocessor, while CXXFLAGS will be given to the C++ compiler.
The GNU Make Manual is a good resource for questions like this (see Implicit Variables).
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NameError: global name 'unicode' is not defined - in Python 3
...thon 3 renamed the unicode type to str, the old str type has been replaced by bytes.
if isinstance(unicode_or_str, str):
text = unicode_or_str
decoded = False
else:
text = unicode_or_str.decode(encoding)
decoded = True
You may want to read the Python 3 porting HOWTO for more such ...
C++ deprecated conversion from string constant to 'char*'
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You can reproduce the issue with the OP's code by deleting the const from the MyClass constructor...then you can fix it by adding the const back.
– Theodore Murdock
Jan 8 '19 at 18:27
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TypeScript: Creating an empty typed container array
...old question but I recently faced a similar issue which couldn't be solved by this way, as I had to return an empty array of a specific type.
I had
return [];
where [] was Criminal[] type.
Neither return: Criminal[] []; nor return []: Criminal[]; worked for me.
At first glance I solved it by c...
What is the standard exception to throw in Java for not supported/implemented operations?
...m the class documentation in that case. The exception does seem to be used by other packages. I guess if Oracle does so, then so should we. I'll file a bug report.
– Maarten Bodewes
Jun 7 '16 at 18:14
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Delete sql rows where IDs do not have a match from another table
...is non-nullable. Also, the third solution (NOT IN) only requires that f.id by non-nullable. Presumably that is a primary key, so it would be.
– ToolmakerSteve
Sep 26 '16 at 7:42
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Append values to a set in Python
...dd(onemorevalue)
But, of course, doing it in bulk with a single .update call is faster and handier, when otherwise feasible.
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How can I use Python to get the system hostname?
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@BelowtheRadar don't worry, I usually only call either of these once per script.
– robert
Mar 1 '17 at 11:58
7
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How to initialize HashSet values by construction?
I need to create a Set with initial values.
23 Answers
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