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Variable length (Dynamic) Arrays in Java
... Because it allows you to simply switch between List-implementations if needed, you only have to change the new XYZList(). If the variable is declared as ArrayList oyu might use methods specific to this implementation, making a change more complicated.
– Mnementh
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What is “Power Save Mode” in IntelliJ IDEA and other Jetbrains IDEs?
...at with powersave turned on, syntax errors will still get highlighted, but iffy code constructs e.g. missing docblocks, assignment inside conditional statements etc will not (assuming you have those inspections enabled). This means that you can save battery power when using your laptop and choose to...
How to append multiple values to a list in Python
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@YohanObadia If that was the case for Python 3 in '17, it is no longer the case - Python 3.7.7 does exactly what poke described.
– Post169
May 8 at 16:09
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How do I get a list of column names from a psycopg2 cursor?
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If you just want the column names, don't select all of the rows in the table. This is more efficient: curs.execute("SELECT * FROM people LIMIT 0")
– Demitri
Sep 6 '12 at 22:03
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How do you perform a left outer join using linq extension methods
... Foo = x, Bars = y })
.SelectMany(
x => x.Bars.DefaultIfEmpty(),
(x,y) => new { Foo=x.Foo, Bar=y});
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git: Apply changes introduced by commit in one repo to another repo
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As a hack, you can try modifying recipe for comparing commits in two different repositories on GitTips page, i.e.:
GIT_ALTERNATE_OBJECT_DIRECTORIES=../repo/.git/objects \
git cherry-pick $(git --git-dir=../repo/.git rev-parse --verify <commit>)...
When editing Microsoft Office VBA, how can I disable the popup “Compile error” messages?
... For example, to go copy something you want to paste into that line. But, if that partial line isn't syntactically valid, the VBA editor interrupts your work by popping up a "Compile error" message that has to be dismissed.
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Android - shadow on text?
...dit2:
To set this style programmatically, you'd do something like this (modified from this example to match ringdroid's resources from above)
TextView infoTextView = (TextView) findViewById(R.id.info);
infoTextView.setTextAppearance(getApplicationContext(),
R.style.AudioFileInfoOverlayText...
Is the VC++ code DOM accessible from VS addons?
...tel and others). Since the C# Code DOM is accessible to addons (correct me if I'm wrong), is the C++ Code DOM also accessible? Can this be used to analyse an open VC++ project within the VS environment?
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Pass a data.frame column name to a function
...ley's Advanced R book is an excellent reference for some of these issues.
If you really want to save the user from typing all those quotes, one option might be to convert bare, unquoted column names to strings using deparse(substitute()):
new_column2 <- function(df,col_name,col1,col2){
col_...