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Relationship between hashCode and equals method in Java [duplicate]
...t is: objects which are .equals() MUST have the same .hashCode().
This is all documented in the javadoc for Object. And Joshua Bloch says you must do it in Effective Java. Enough said.
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How does this JavaScript/jQuery syntax work: (function( window, undefined ) { })(window)?
...d = "new value";. So jQuery creates a local "undefined" variable that is REALLY undefined.
The window variable is made local for performance reasons. Because when JavaScript looks up a variable, it first goes through the local variables until it finds the variable name. When it's not found, JavaScr...
Calculating moving average
...y helpful though. There doesn't seem to be a built-in function in R will allow me to calculate moving averages. Do any packages provide one? Or do I need to write my own?
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form_for with nested resources
...th(@article, comment_item),
:method => :delete, :confirm => "Really?" %>
What jamuraa says may work in the context of Article, but it did not work for me in various other ways.
There is a lot of discussion related to nested resources, e.g. http://weblog.jamisbuck.org/2007/2/5/nesti...
The apk must be signed with the same certificates as the previous version
I had uploaded my app to Google Play (back when it was called Android Market) some time ago.
11 Answers
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How to customize the background color of a UITableViewCell?
I would like to customize the background (and maybe the border too) of all of the UITableViewCells within my UITableView. So far I have not been able to customize this stuff, so I have a bunch of white background cells which is the default.
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Project management to go with GitHub [closed]
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If you're thinking that you'll really be the only developer, Fogbugz will help you keep your sanity. Fogbugz is a great product, It builds focused communications and can turn anything into a case (issue). It does all that as well as any system I've seen.
B...
How does one parse XML files? [closed]
...nswered Sep 11 '08 at 5:05
Jon GallowayJon Galloway
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how to prevent “directory already exists error” in a makefile when using mkdir
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"Generally, stick to the widely-supported (usually posix-specified) options and features of these programs. For example, don't use ‘mkdir -p’, convenient as it may be, because a few systems don't support it at all and with othe...
How can I get dict from sqlite query?
...ow and I tried connection.row_factory = dict_factory as shown but cur.fetchall() is still giving me a list of tuples - any idea why this is not working?
– displayname
Dec 7 '16 at 10:51
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