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Factory Pattern. When to use factory methods?
...tively nested, when your House fails creating you will probably spend some time trying to isolate exactly what is failing.
The alternative is to do the following (dependency injection, if you like the fancy term):
$TVObj = new TV($param1, $param2, $param3);
$LivingroomObj = new LivingRoom($TVObj, ...
When should TaskCompletionSource be used?
...Source is when it's possible that my method won't necessarily have to do a time consuming operation. What it allows us to do is to choose the specific cases where we'd like to use a new thread.
A good example for this is when you use a cache. You can have a GetResourceAsync method, which looks in t...
How do you move a file?
...e issues moving over 1,500 files in one go. Moving them one directory at a time seemed to get rid of this issue though.
– Michael Murphy
Jun 4 '19 at 12:31
add a comment
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How do emulators work and how are they written? [closed]
...cessor. The core problem with interpretation is that it's very slow; each time you handle a given instruction, you have to decode it and perform the requisite operation.
With dynamic recompilation, you iterate over the code much like interpretation, but instead of just executing opcodes, you build ...
Why is Maven downloading the maven-metadata.xml every time?
...us in my case, Maven Central if you're not using your own remote repo) any time Maven needs to retrieve a snapshot artifact during a build, checking to see if there's a newer copy. The metadata is required for this. If there is a newer copy Maven downloads it to your local repo.
In the example, f...
How to mock ConfigurationManager.AppSettings with moq
...the implementation of the interface on the fly. I've written about it some time ago: blog.andreloker.de/post/2008/09/05/… (scroll down to "A Solution" to see how I use Castle DictionaryAdapter)
– Andre Loker
Feb 28 '12 at 17:03
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Logger slf4j advantages of formatting with {} instead of string concatenation
...timization, it's simply a matter of doing something right/better the first time.)
– michael
Feb 18 '13 at 21:56
why ov...
How to check command line parameter in “.bat” file?
...at's wrong with the quotes?
Again, short answer: they are "magical" - sometimes double (double) quotes get converted to a single (double) quote. And they need to match, for a start.
Consider this little script:
@rem argq.bat
@echo off
:loop
if "%1"=="" goto :done
echo %1
shift
goto :loop
:done...
Is it possible to use the instanceof operator in a switch statement?
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No, it will be done automatically at runtime. If you call someFunction(Action.a) then a.doAction will be called.
– se.solovyev
Jan 15 '16 at 14:15
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Update a table using JOIN in SQL Server?
...ly, is that you're going to have to re-run this entire update every single time any row in table2 changes. A SUM is something you can always calculate at runtime and, in doing so, never have to worry that the result is stale.
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