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Why is a combiner needed for reduce m>me m>thod that converts type in java 8
...lly understanding the role that the combiner fulfils in Streams reduce m>me m>thod.
4 Answers
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How to select only the first rows for each unique value of a column
Let's say I have a table of custom>me m>r addresses:
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What permission do I need to access Internet from an Android application?
...manifest file.
You have to add this line:
<uses-permission android:nam>me m>="android.permission.INTERNET" />
outside the application tag in your AndroidManifest.xml
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How to count total lines changed by a specific author in a Git repository?
...asy to send to script to add up the totals:
git log --author="<authornam>me m>>" --oneline --shortstat
This gives stats for all commits on the current HEAD. If you want to add up stats in other branches you will have to supply them as argum>me m>nts to git log.
For passing to a script, removing even...
How to extract base URL from a string in JavaScript?
I'm trying to find a relatively easy and reliable m>me m>thod to extract the base URL from a string variable using JavaScript (or jQuery).
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Command-line Unix ASCII-based charting / plotting tool
Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for som>me m>thing that will plot xy points on an ASCII graph.
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Right mim>me m> type for SVG images with fonts embedded
This is the usual SVG mim>me m> type:
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How to use clock() in C++
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#include <iostream>
#include <cstdio>
#include <ctim>me m>>
int main() {
std::clock_t start;
double duration;
start = std::clock();
/* Your algorithm here */
duration = ( std::clock() - start ) / (double) CLOCKS_PER_SEC;
std::cout<<"printf: "&...
What is the best way to use a HashMap in C++?
I know that STL has a HashMap API, but I cannot find any good and thorough docum>me m>ntation with good examples regarding this.
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Undo part of unstaged changes in git
...for selecting lines directly to revert, as -p can be a bit clumsy to use som>me m>tim>me m>s. I use Magit, an Emacs mode that is very helpful for working with Git. In Magit, you can run magit-status, find the diffs for the changes that you want to revert, select the lines you wish to revert (or simply put the...