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json_encode is returning NULL?
...ranca on the web. Instead of cluttering the API with additional parameters and overhead, PHP (rigthly) uses the most common encoding, leaving to you the conversion burden if you use an uncommon (or an almost dead, as in your case) encoding.
– ntd
Nov 1 '13 at 1...
Strings are objects in Java, so why don't we use 'new' to create them?
... b = new String("abcd");
then it's possible to have
a == b; // False
(and in case anyone needs reminding, always use .equals() to compare Strings; == tests for physical equality).
Interning String literals is good because they are often used more than once. For example, consider the (contrive...
Should I inherit from std::exception?
...t you throw at it, but can just catch the std::exception.
Edit: as Martin and others noted, you actually want to derive from one of the sub-classes of std::exception declared in <stdexcept> header.
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Spring @Transaction method call by the method within the same class, does not work?
...ring Transaction. Something that I found really odd, probably I did understand this properly.
8 Answers
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How to check if an activity is the last one in the activity stack for an application?
... (I would prefer second one).
There's possibility to check current tasks and their stack using ActivityManager.
So, to determine if an activity is the last one:
request android.permission.GET_TASKS permissions in the manifest.
Use the following code:
ActivityManager mngr = (ActivityManager) ge...
How can I create a temp file with a specific extension with .NET?
...ent to the odds of
creating a few tens of trillions of
UUIDs in a year and having one
duplicate. In other words, only after
generating 1 billion UUIDs every
second for the next 100 years, the
probability of creating just one
duplicate would be about 50%. The
probability of one duplic...
What C++ Smart Pointer Implementations are available?
...pying and assignment in certain situations. Specifically it can be used to convert a non-const std::auto_ptr to an lvalue using the Colvin-Gibbons trick also known as a move constructor to transfer ownership.
On the contrary perhaps std::auto_ptr wasn't really intended to be used as a general purpo...
How to sort a HashMap in Java [duplicate]
... into a HashMap<TreeSet<Person>>, though the semantics of sets and lists are a bit different.
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How can I detect when an Android application is running in the emulator?
... development server automatically.) What is the best way to detect when an Android application is running in the emulator?
...
How to determine programmatically whether a particular process is 32-bit or 64-bit
...bool retVal;
return NativeMethods.IsWow64Process(process.Handle, out retVal) && retVal;
}
return false; // not on 64-bit Windows Emulator
}
}
internal static class NativeMethods
{
[DllImport("kernel32.dll", SetLastError =...