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What is the main difference between Inheritance and Polymorphism?
...class, then you have a Student class that extends Person, Student inherits all the things that Person has. There are some details around the access modifiers you put on the fields/methods in Person, but that's the basic idea. For example, if you have a private field on Person, Student won't see it...
How do I remove the “extended attributes” on a file in Mac OS X?
...pple.metadata:kMDItemWhereFroms
you can also use the -c option to remove all extended attributes:
$ xattr -c s.7z
$ xattr s.7z
xattr -h will show you the command line options, and xattr has a man page.
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Git stash uncached: how to put away all unstaged changes?
... a snippet from the git-stash help
If the --keep-index option is used, all changes already added to the
index are left intact.
If the --include-untracked option is used, all untracked files are
also stashed and then cleaned up with git clean, leaving the working
directory in a very cl...
Select all elements with “data-” attribute without using jQuery
Using only JavaScript, what is the most efficient way to select all DOM elements that have a certain data- attribute (let's say data-foo ). The elements may be different tag elements.
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Remove all unused resources from an android project
I want to remove all unused layouts, strings, drawables, colors, etc from my Android res directory. Are there any tools that will give me a list of files and I can remove from my repository and elements within specifics files (e.g. unused string entries) that are no longer used?
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Visual Studio TFS shows unchanged files in the list of pending changes
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This is normal if a file becomes automatically checked out due to a change, and if ultimately the contents of the file are changed back to it's original state. At that point you would see the message about identical contents upon comparison.
This blog entry descr...
Make Vim show ALL white spaces as a character
I can't find a way to make Vim show all white spaces as a character.
All I found was about tabs, trailing spaces etc.
23 An...
Is it possible to insert multiple rows at a time in an SQLite database?
...blename'
SELECT 'data1' AS 'column1', 'data2' AS 'column2'
UNION ALL SELECT 'data1', 'data2'
UNION ALL SELECT 'data1', 'data2'
UNION ALL SELECT 'data1', 'data2'
a note on performance
I originally used this technique to efficiently load large datasets from Ruby on Rails. However, as Jaime...
How to allow remote connection to mysql
I have installed MySQL Community Edition 5.5 on my local machine and I want to allow remote connections so that I can connect from external source.
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Do you continue development in a branch or in the trunk? [closed]
... considering the trunk the stable version, tagging it as a release periodically, and doing your experimental work in branches. What do folks think is the trunk considered "gold" or considered a "sand box"?
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