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Programmatically access currency exchange rates [closed]
...ill be billed.
If you want to quote an "accurate" price to your customers based on an exchange rate, you need to factor in the above and provide a buffer so that you don't end up charging more than what you quoted.
FWIW, I've been adding 4% to what the F/X conversion would otherwise indicate.
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How to get awaitable Thread.Sleep?
I'm writing a network-bound application based on await/sleep paradigm.
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MySQL vs PostgreSQL for Web Applications [closed]
...n change rapidly from version to version, so before you go choosing a DBMS based on the advice below, do some research to see if it's still accurate.
Check for newer answers below.
Better?
MySQL is much more commonly provided by web hosts.
PostgreSQL is a much more mature product.
There's this...
Java generics - why is “extends T” allowed but not “implements T”?
...ve a constructor and methods that can accept any class that both axtends a base class and exhibits an interface not just interfaces that extend an interface. Then have the instantiation of the Genric test for the presense of interfaces AND have the actual class specified as a type parameter. Ideal...
Generic method multiple (OR) type constraint
... programming world this is referred to as Overloading the method.
Define a base class or interface that knows how to do all the things that you need for the method and have one method take just that type. This may involve wrapping up a string and Exception in a small class to define how you plan on ...
How can I determine the URL that a local Git repository was originally cloned from?
... This is not quite the right answer because of the config option url.<base>.insteadOf. See my answer - git has a command for this purpose.
– Carl Suster
Jun 2 '13 at 5:17
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sql primary key and index
Say I have an ID row (int) in a database set as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed?
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NullPointerException accessing views in onCreate()
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The tutorial is probably outdated, attempting to create an activity-based UI instead of the fragment-based UI preferred by wizard-generated code.
The view is in the fragment layout (fragment_main.xml) and not in the activity layout (activity_main.xml). onCreate() is too early in the lifecyc...
jQuery or javascript to find memory usage of page
...n (not just developer tools), so that my application can determine actions based on memory usage in a user's browser.
The simple but correct answer is no. Not all browsers expose such data to you. And I think you should drop the idea simply because the complexity and inaccuracy of a "handmade" sol...
Disable time in bootstrap date time picker
...his out due to the update with DateTimePicker. You would enter in a format based off of moment.js documentation. You can use what other answers showed:
$('#datetimepicker').datetimepicker({ format: 'DD/MM/YYYY' });
Or you can use some of the localized formats moment.js provides to do just a date,...