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Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]
...build "programs" that need to run alongside without crashing (Kind of like API programming.) It would need some additional incentive component - not to just do steps, but to reach some sort of goal. Maybe getting a flag in a grid of squares and bringing it to a different spot on the grid....
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How to use the toString method in Java?
... approach for getting the job done, given you keep using the default Swing API. If you want custom rendering, fine, install a custom renderer on your component. If you just want to display an object represented by a String, then implementing toString() is way easier compared to a custom renderer, wh...
Gson: How to exclude specific fields from Serialization without annotations
...nt with all fields that could possibly come in. In the case of a back-end API that might be shared among projects, this could be problematic in case additional fields are added. Essentially it is whitelisting vs blacklisting of the fields.
– theblang
Nov 25 '...
Queue.Queue vs. collections.deque
...nder the hood) and unless you don't need the "comfortable" synchronization API (blocking / timeout), the strict maxsize obeyance or the "Override these methods (_put, _get, ..) to implement other queue organizations" sub-classing behavior, or when you take care of such things yourself, then a bare ...
Measuring the distance between two coordinates in PHP
...ere - http://www.codexworld.com/distance-between-two-addresses-google-maps-api-php/
$latitudeFrom = '22.574864';
$longitudeFrom = '88.437915';
$latitudeTo = '22.568662';
$longitudeTo = '88.431918';
//Calculate distance from latitude and longitude
$theta = $longitudeFrom - $longitudeTo;
$dist = si...
Does using final for variables in Java improve garbage collection?
...ave to clean up.
I only use boxed primitives when required by an existing API, or when I need nullable primatives.
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Programmatically Request Access to Contacts
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Important
The Address Book UI framework is deprecated in iOS 9. Use the APIs defined in the ContactsUI framework instead. To learn more, see ContactsUI
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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path
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I had the same problem too. Calling an API with a Lets Encrypt Certificate may not work with older versions of Java because it isn't recognized by the trusted root certification authorities. Updating Java will solve this issue.
– hertg
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JavaScript checking for null vs. undefined and difference between == and ===
...t not all of the things JavaScript interacts with are loosely typed. If an API like the DOM in browsers needs an object reference that's blank, we use null, not undefined. And similarly, the DOM's getElementById operation returns an object reference — either a valid one (if it found the DOM eleme...
When to Redis? When to MongoDB? [closed]
...ween Redis and MongoDB. I know they are different; the performance and the API is totally different.
10 Answers
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