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How to output only captured groups with sed?
...default to printing each line (-n)
exclude zero or more non-digits
include one or more digits
exclude one or more non-digits
include one or more digits
exclude zero or more non-digits
print the substitution (p)
In general, in sed you capture groups using parentheses and output what you capture usi...
Using build types in Gradle to run same app that uses ContentProvider on one device
...ug app so I could have release version that I'm using and debug version on one phone. I was referencing this: http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Types
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Java default constructor
What exactly is a default constructor — can you tell me which one of the following is a default constructor and what differentiates it from any other constructor?
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Git: How to squash all commits on branch
... git reset $(git merge-base master yourBranch)
git add -A
git commit -m "one commit on yourBranch"
This isn't perfect as it implies you know from which branch "yourBranch" is coming from.
Note: finding that origin branch isn't easy/possible with Git (the visual way is often the easiest, as seen ...
JavaScript variables declare outside or inside loop?
... code, it's better to declare var in that section, so the section stands alone and can be copy-pasted. Otherwise, copy-paste a few lines of code to a new function during refactoring, without separately picking out and moving the associated var, and you've got yourself an accidental global.
In parti...
Find size of an array in Perl
...decade). $[ is deprecated. Using $[ issues a deprecation warning even when one doesn't turn on warnings. Assigning anything but zero to $[ will be an error in 5.16. Can we stop mentioning $[ already?
– ikegami
Sep 13 '11 at 19:05
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What is the easiest/best/most correct way to iterate through the characters of a string in Java?
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plus one for placing the s.length() in the initialization expression. If anyone doesn't know why, it's because that is only evaluated once where if it was placed in the termination statement as i < s.length(), then s.length() w...
Git: How to rebase to a specific commit?
...he docs, It works by going to the common ancestor of the two branches (the one you’re on and the one you’re rebasing onto), getting the diff introduced by each commit of the branch you’re on, saving those diffs to temporary files, resetting the current branch to the same commit as the branch y...
Should I use char** argv or char* argv[]?
I'm just learning C and was wondering which one of these I should use in my main method. Is there any difference? Which one is more common?
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How can I implement an Access Control List in my Web MVC application?
...nd that it is the original object, it will react the same
But, there are one major issue with this method too - you cannot natively check if secured object implements and interface ( which also applies for looking up existing methods ) or is part of some inheritance chain.
Second part/answer (RBA...