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Square retrofit server mock for testing
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As the old mechanisms like creating MockClient class and implementing it from Client are not working anymore with Retrofit 2.0, here I describe a new way of doing that. All what you need to do now is to add your custom interceptors for OkHttpClient like it is shown below. FakeInterceptor class jus...
What is the difference between the add and offer methods in a Queue in Java?
...added to collection the add method throws an exception and offer doesn't.
From: http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#add%28E%29
If a collection refuses to add a
particular element for any reason
other than that it already contains
the element, it must throw an...
Most simple but complete CMake example
...ngs, and parsed by the function implementation.
you can clone everything from github
cmake_minimum_required(VERSION 3.0)
project(example_project)
###############################################################################
## file globbing #####################################################...
What does git push -u mean?
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"Upstream" would refer to the main repo that other people will be pulling from, e.g. your GitHub repo. The -u option automatically sets that upstream for you, linking your repo to a central one. That way, in the future, Git "knows" where you want to push to and where you want to pull from, so you c...
What is the difference between i++ and ++i?
...tly this sort of thing wrong. I get probably half a dozen questions a year from real programmers about why some particular expression chock-full of increments and decrements and array dereferences doesn't work the way they assumed it did.
– Eric Lippert
Jul 27 ...
Representing graphs (data structure) in Python
How can one neatly represent a graph in Python ? (Starting from scratch i.e. no libraries!) What data structure (e.g. dicts/tuples/dict(tuples)) will be fast but also memory efficient? One must be able to do various graph operations on it.
As pointed out, the various graph representations...
How does strtok() split the string into tokens in C?
...he manual says it breaks the string into tokens. I am unable to understand from the manual what it actually does.
15 Answer...
What is a “Bitmap heap scan” in a query plan?
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The best explanation comes from Tom Lane, which is the algorithm's author unless I'm mistaking. See also the wikipedia article.
In short, it's a bit like a seq scan. The difference is that, rather than visiting every disk page, a bitmap index scan AND...
Can code that is valid in both C and C++ produce different behavior when compiled in each language?
...haracter ('a') in C/C++ for an explanation of the difference.
Another one from this article:
#include <stdio.h>
int sz = 80;
int main(void)
{
struct sz { char c; };
int val = sizeof(sz); // sizeof(int) in C,
// sizeof(struct sz) in C++
prin...
How to read multiple text files into a single RDD?
I want to read a bunch of text files from a hdfs location and perform mapping on it in an iteration using spark.
10 Answers...