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What is a “web service” in plain English?
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A simple definition: A web service is a function that can be accessed by other programs over the web (HTTP).
For example, when you create a website in PHP that outputs HTML, its target is the browser and by extension the human reading the page in the browser. A web service is not targeted at ...
Are static variables shared between threads?
...problems because they're more exposed.
There is a visibility issue imposed by the JVM's memory model. Here's an article talking about the memory model and how writes become visible to threads. You can't count on changes one thread makes becoming visible to other threads in a timely manner (actually ...
Find first element by predicate
... BETTER: since we looking for a boolean return value, we can do it better by adding null check: return dataSource.getParkingLots().stream().filter(parkingLot -> Objects.equals(parkingLot.getId(), id)).findFirst().orElse(null) != null;
– shreedhar bhat
Ap...
Replace whole line containing a string using Sed
...ample, using GNU sed:
sed -i '/TEXT_TO_BE_REPLACED/c\This line is removed by the admin.' /tmp/foo
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Two divs side by side - Fluid display
I am trying to place two divs side by side and using the following CSS for it.
8 Answers
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CSS image resize percentage of itself?
... with a percentage of itself. For example, I just want to shrink the image by half by resizing it to 50%. But applying width: 50%; will resize the image to be 50% of the container element (the parent element which maybe the <body> for example).
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Default value to a parameter while passing by reference in C++
...ault value to a parameter of a function while we are passing the parameter by reference. in C++
17 Answers
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Windows batch files: .bat vs .cmd?
...ter which way I name my batch files, or is there some gotcha awaiting me by using the wrong suffix?
13 Answers
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RuntimeWarning: invalid value encountered in divide
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I think your code is trying to "divide by zero" or "divide by NaN". If you are aware of that and don't want it to bother you, then you can try:
import numpy as np
np.seterr(divide='ignore', invalid='ignore')
For more details see:
http://docs.scipy.org/doc/num...
Ways to save enums in database
... to decipher:
Name Suit
================== ==========
Shelby Jackson 2
Ian Boyd 1
verses
Name Suit
================== ==========
Shelby Jackson Diamond
Ian Boyd Heart
the latter is much easier. The former required getting at the s...