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How to color System.out.println output? [duplicate]
...RL+V,CTRL+[[31mERROR MESSAGE IN RED'
ie, press CTRL+V and then CTRL+[ in order to get a "raw" ESC character when escape interpretation is not available
If done correctly, you should see a ^[. Although it looks like two characters, it is really just one, the ESC character.
You can also press CTRL+V...
C# Set collection?
...at contains no duplicate elements, and whose elements are in no particular order...
The capacity of a HashSet(Of T) object is the number of elements that the object can hold. A HashSet(Of T) object's capacity automatically increases as elements are added to the object.
The HashSet(Of...
Operation on every pair of element in a list
...,1 3,2 3,3 3,4
4,1 4,2 4,3 4,4
permutations() generates all unique orderings of each unique pair of elements, eliminating the x,x duplicates:
. 1,2 1,3 1,4
2,1 . 2,3 2,4
3,1 3,2 . 3,4
4,1 4,2 4,3 .
Finally, combinations() only generates each unique pair of elements, in ...
How can I read a large text file line by line using Java?
...les.lines(Paths.get(filename), Charset.defaultCharset())) {
lines.forEachOrdered(line -> process(line));
}
Printing all the lines in the file:
try (Stream<String> lines = Files.lines(file, Charset.defaultCharset())) {
lines.forEachOrdered(System.out::println);
}
...
Using vagrant to run virtual machines with desktop environment
...ant user. To do this you need to permit anyone to start the GUI: sudo vim /etc/X11/Xwrapper.config and edit it to allowed_users=anybody.
Next, install the VirtualBox guest tools before starting the GUI. This will give you a healthy screen resolution, integrated mouse, etc.
$ sudo apt-get install -y ...
fancybox2 / fancybox causes page to to jump to the top
....
The problem is that fancy box changes the overflow value of the body in order to hide the browser scrollbars.
As Dave Kiss points out, we can stop fancy box from doing this by adding the following parameters:
$('.image').fancybox({
padding: 0,
helpers: {
overlay: {
locked: false
...
Total memory used by Python process?
...tion that works for various operating systems, including Linux, Windows 7, etc.:
import os
import psutil
process = psutil.Process(os.getpid())
print(process.memory_info().rss) # in bytes
On my current Python 2.7 install with psutil 5.6.3, the last line should be
print(process.memory_info()[0...
How to specify JVM maximum heap size “-Xmx” for running an application with “run” action in SBT?
...sbt version.
Since sbt 0.13.6 .sbtconfig is deprecated. Modify /usr/local/etc/sbtopts along these lines:
-J-Xms512M
-J-Xmx3536M
-J-Xss1M
-J-XX:+CMSClassUnloadingEnabled
-J-XX:+UseConcMarkSweepGC
-J-XX:MaxPermSize=724M
-J-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005
You can a...
How do I get indices of N maximum values in a NumPy array?
...copy of an array from unconstrained min to unconstrained max in a reversed order)
– FizBack
Oct 19 '16 at 13:51
...
Comparing Dates in Oracle SQL
...dg.LAB_CODIGO = 56
and trunc(g.FECHA) > to_date('01/02/15','DD/MM/YY')
order by g.FECHA;
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