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Orchestration vs. Choreography
...are the differences between service orchestration and service choreography from an intra-organization point of view.
10 Ans...
Remove characters except digits from string using Python?
How can I remove all characters except numbers from string?
15 Answers
15
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Trying to fix line-endings with git filter-branch, but having no luck
...hat you don't have any modified files, then you can do this as follows.
# From the root of your repository remove everything from the index
git rm --cached -r .
# Change the autocrlf setting of the repository (you may want
# to use true on windows):
git config core.autocrlf input
# Re-add all t...
Configuring diff tool with .gitconfig
...
First link is broken. It seems the domain has changed from .com to .org. I'm able to browse jeetworks.org/software
– RBT
Feb 27 '17 at 3:08
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How to analyze a java thread dump?
... explains what that waiting on means:
A lock prevents more than one entity from accessing a shared resource. Each object in Java™ has an associated lock (gained by using a synchronized block or method). In the case of the JVM, threads compete for various resources in the JVM and locks on Java obje...
Covariance and contravariance real world example
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Let's say you have a class Person and a class that derives from it, Teacher. You have some operations that take an IEnumerable<Person> as the argument. In your School class you have a method that returns an IEnumerable<Teacher>. Covariance allows you to directly use th...
How do you copy the contents of an array to a std::vector in C++ without looping?
I have an array of values that is passed to my function from a different part of the program that I need to store for later processing. Since I don't know how many times my function will be called before it is time to process the data, I need a dynamic storage structure, so I chose a std::vector ....
Fastest way to get the first object from a queryset in django?
Often I find myself wanting to get the first object from a queryset in Django, or return None if there aren't any. There are lots of ways to do this which all work. But I'm wondering which is the most performant.
...
What is the use of hashCode in Java?
...implementations like HashMap, HashTable, HashSet, etc.
The value received from hashCode() is used as the bucket number for storing elements of the set/map. This bucket number is the address of the element inside the set/map.
When you do contains() it will take the hash code of the element, then lo...
Why is a boolean 1 byte and not 1 bit of size?
...
From Wikipedia:
Historically, a byte was the number of
bits used to encode a single character
of text in a computer and it is
for this reason the basic addressable
element in many computer
architectures.
So by...