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How do I copy an object in Java?
...can use Java Object Serialization to make a deep copy. Unfortunately, this approach has some problems too(detailed examples).
Possible Problems:
clone is tricky to implement correctly.
It's better to use Defensive copying, copy constructors(as @egaga reply) or static factory methods.
If you hav...
Fragments onResume from back stack
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This doesn't appear to work with app compat fragments.
– Lo-Tan
May 22 '15 at 5:05
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Is there a timeout for idle PostgreSQL connections?
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It sounds like you have a connection leak in your application because it fails to close pooled connections. You aren't having issues just with <idle> in transaction sessions, but with too many connections overall.
Killing connections is not the right answer for that, ...
Should I use static_cast or reinterpret_cast when casting a void* to whatever
...terpret_cast has a number of meanings, for all of which holds that “the mapping performed by reinterpret_cast is implementation-defined.” [5.2.10.3]
But in the particular case of casting from void* to T* the mapping is completely well-defined by the standard; namely, to assign a type to a typel...
How do I auto-reload a Chrome extension I'm developing?
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when you call chrome.runtime.reload(), what actually happens? do multiple pages/tabs refresh?
– Alexander Mills
Jan 1 '18 at 23:22
5
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Best way for a 'forgot password' implementation? [closed]
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Update: revised in May 2013 for a better approach
The user enters his username and hits "forgot password". I also recommend the option of entering the email address instead of the username, because usernames are sometimes forgotten too.
The system has a table pass...
Compiling/Executing a C# Source File in Command Prompt
...indows\Microsoft.NET\Framework\v3.5\bin\csc.exe
/t:exe /out:MyApplication.exe MyApplication.cs ...
(all on one line)
If you have more than one source module to be compiled, you can put it on that same command line. If you have other assemblies to reference, use /r:AssemblyName.dll...
adding multiple entries to a HashMap at once in one statement
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Guava is huge, I wouldn't use it for my Android app unless absolutely necessary
– ericn
May 3 '17 at 7:29
4
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Trying to mock datetime.date.today(), but not working
...ur today() will datetime.date.today be a different function, which doesn't appear to be what you want.
What you really want seems to be more like this:
@mock.patch('datetime.date.today')
def test():
datetime.date.today.return_value = date(2010, 1, 1)
print datetime.date.today()
Unfortuna...
How do I run a batch file from my Java Application?
In my Java application, I want to run a batch file that calls " scons -Q implicit-deps-changed build\file_load_type export\file_load_type "
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