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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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Serving favicon.ico in ASP.NET MVC
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Placing favicon.ico in the root of your domain only really affects IE5, IIRC. For more modern browsers you should be able to include a link tag to point to another directory:
<link rel="SHORTCUT ICON" href="http://www.mydomain.com/content/favicon.ico"/>
You can also use...
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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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...
Comparing two java.util.Dates to see if they are in the same day
... you have to pass the relevant time zone(s) to the Calendar.getInstance() calls, after you have decided what exactly you mean with "the same day".
And yes, Joda Time's LocalDate would make the whole thing much cleaner and easier (though the same difficulties involving time zones would be present).
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Java: when to use static methods
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One rule-of-thumb: ask yourself "Does it make sense to call this method, even if no object has been constructed yet?" If so, it should definitely be static.
So in a class Car you might have a method:
double convertMpgToKpl(double mpg)
...which would be static, because one mig...
Sort NSArray of date strings or objects
...escriptor as below:
NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"beginDate" ascending:TRUE];
[myMutableArray sortUsingDescriptors:[NSArray arrayWithObject:sortDescriptor]];
[sortDescriptor release];
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When 1 px border is added to div, Div size increases, Don't want to do that
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The border css property will increase all elements "outer" size, excepts tds in tables. You can get a visual idea of how this works in Firebug (discontinued), under the html->layout tab.
Just as an example, a div with a width and height of 10px and a border o...
Bootstrap trying to load map file. How to disable it? Do I need to do it?
...not to have an error mark in dev tools, I added that map file, after which all styles are displayed as they defined in less files, which doesn't help me much.
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The entitlements specified…profile. (0xE8008016). Error iOS 4.2
...t have a Entitlements file in my project, as I am not distributing it at all, only putting it on one device. I have gone through all the hoops and loops apple puts you through (certificate, device, provisioning) down to the letter, and I cannot figure out what is going wrong.
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