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Java: Difference between the setPreferredSize() and setSize() methods in components
...he component's parent is using a layout manager; the places this will typically have an effect would be on top-level components (JFrames and JWindows) and things that are inside of scrolled panes. You also must call setSize() if you've got components inside a parent without a layout manager.
Genera...
Linux: is there a read or recv from socket with timeout?
...has
blocked for this much time without
receiving additional data, it shall
return with a partial count or errno
set to [EAGAIN] or [EWOULDBLOCK] if no
data is received. The default for this
option is zero, which indicates that a
receive operation shall not time out.
This option takes...
How to add Active Directory user group as login in SQL Server
... Thank you for a very clear answer with annotated screen shots! I wish all answers were like this...
– NickG
Jan 17 '13 at 15:13
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Using member variable in lambda capture list inside a member function
... grid is not in the enclosing scope, but this is (every access to grid actually happens as this->grid in member functions). For your usecase, capturing this works, since you'll use it right away and you don't want to copy the grid
auto lambda = [this](){ std::cout << grid[0][0] << "\...
add a string prefix to each value in a string column using Pandas
...map :
df['col'].map('str{}'.format)
It will apply the word "str" before all your values.
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Define preprocessor macro through CMake?
... place for add_definitions. CMake is such a shabby system, but they are finally finding some sanity.
Find more explanation on which commands to use for compiler flags here: https://cmake.org/cmake/help/latest/command/add_definitions.html
Likewise, you can do this per-target as explained in Jim Hun...
How does grep run so fast?
I am really amazed by the functionality of GREP in shell, earlier I used to use substring method in java but now I use GREP for it and it executes in a matter of seconds, it is blazingly faster than java code that I used to write.(according to my experience I might be wrong though)
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Getting MAC Address
... says that it will return a random long if it fails to detect the mac: "If all attempts to obtain the hardware address fail, we choose a random 48-bit number with its eighth bit set to 1 as recommended in RFC 4122." So check that eighth bit!
– deinonychusaur
Fe...
Case in Select Statement
...imple CASE expression
Within a SELECT statement, a simple CASE expression allows for only an equality check; no other comparisons are made. The following example uses the CASE expression to change the display of product line categories to make them more understandable.
USE AdventureWorks2012;
GO
S...
Why doesn't println! work in Rust unit tests?
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@Nashenas, the option is called nocapture, not no-capture.
– Vladimir Matveev
Jul 16 '15 at 5:21
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