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Does setting Java objects to null do anything anymore?
...ementing an expandable array container (ArrayList or the like) using a pre-allocated array. Elements beyond the "logical" size of the list should be nulled out, or else they won't be freed.
See Effective Java 2nd ed, Item 6: Eliminate Obsolete Object References.
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What is simplest way to read a file into String? [duplicate]
... end of the string anchor. This ultimately makes the input have one actual token, which is the entire file, so it can be read with one call to next().
There is a constructor that takes a File and a String charSetName (among many other overloads). These two constructor may throw FileNotFoundExceptio...
What kind of leaks does automatic reference counting in Objective-C not prevent or minimize?
...ters. Traditionally, it has always been of utmost importance to check your allocs, copies and retains to make sure each has a corresponding release message.
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Displaying better error message than “No JSON object could be decoded”
...the example given by tom:
>>> rson.loads('[1,2,]')
...
rson.base.tokenizer.RSONDecodeError: Unexpected trailing comma: line 1, column 6, text ']'
RSON is a designed to be a superset of JSON, so it can parse JSON files. It also has an alternate syntax which is much nicer for humans to lo...
Tracking CPU and Memory usage per process
...ocessname>
set process=%~1
echo Press CTRL-C To Stop...
:begin
for /f "tokens=2 delims=," %%c in ('typeperf "\Process(%process%)\%% Processor Time" -si 1 -sc 1 ^| find /V "\\"') do (
if %%~c==-1 (
goto :end
) else (
echo %%~c%%
goto begin
)
)
:end
echo Process seems to have terminated.
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Can someone explain the dollar sign in Javascript?
.../watch?v=Acm-MD_6934
According to Ecma International Identifier Names are tokens that are interpreted according to the grammar given in the “Identifiers” section of chapter 5 of the Unicode standard, with some small modifications. An Iden
Getting the parent of a directory in Bash
...ror bash: dirname 'Test': syntax error: invalid arithmetic operator (error token is "'Test'"). Linked code is also wrong.
– Michael Hoffman
Dec 8 '11 at 4:22
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Are global variables bad? [closed]
... higher performing code. "Passing" requires constant stack dynamic memory allocation, and this would be silly for something that ought to be a global, such as global buffer for incoming socket data. For example, if you have a function that reads Winsock recv(), why constantly create and deallocate...
GIT commit as different user without email / or only email
...ou linked to, if you supply anything less than that, it's used as a search token to search through previous commits, looking for other commits by that author.
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How do I run a simple bit of code in a new thread?
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@slayernoah you can pass a CancellationTokenSource as a parameter to it and set the cancellation token outside the thread: msdn.microsoft.com/en-us/library/dd997364(v=vs.110).aspx
– Spongebob Comrade
May 9 '16 at 2:35
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