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Throttling method calls to M requests in N seconds
...ed a component/class that throttles execution of some method to maximum M calls in N seconds (or ms or nanos, does not matter).
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How can I convert JSON to a HashMap using Gson?
...format. Casting a HashMap into JSON when making the request wasn't hard at all but the other way seems to be a little tricky. The JSON response looks like this:
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How to secure database passwords in PHP?
When a PHP application makes a database connection it of course generally needs to pass a login and password. If I'm using a single, minimum-permission login for my application, then the PHP needs to know that login and password somewhere. What is the best way to secure that password? It seems like ...
What is a good use case for static import of methods?
...e your program unreadable and unmaintainable, polluting its namespace with all the static members you import. Readers of your code (including you, a few months after you wrote it) will not know which class a static member comes from. Importing all of the static members from a class can be particular...
boolean in an if statement
... will type coerce two things to be the same type and unless you understand all those rules and can anticipate everything that the JS interpreter might do when given two different types (which most JS developers cannot), you probably want to avoid == entirely.
As an example of how confusing it can b...
How to cancel a Task in await?
...below, and it works to some point. The CancelNotification method DOES get called, which makes you think the task was cancelled, but in the background the task keeps running, then after it's completed, the status of the Task is always completed and never cancelled. Is there a way to completely halt t...
SQL join: selecting the last records in a one-to-many relationship
... purchases. Each purchase belongs to one customer. I want to get a list of all customers along with their last purchase in one SELECT statement. What is the best practice? Any advice on building indexes?
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Precise Financial Calculation in JavaScript. What Are the Gotchas?
...avoid when using JavaScript to do this type of math—if it is possible at all!
7 Answers
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Maven: best way of linking custom external JAR to my project?
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I think you should use mvn install:install-file to populate your local repository with the library jars then you should change the scope from system to compile.
If you are starting with maven I suggest to use maven directly not IDE plugins as it adds an e...
Do fragments really need an empty constructor?
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Yes they do.
You shouldn't really be overriding the constructor anyway. You should have a newInstance() static method defined and pass any parameters via arguments (bundle)
For example:
public static final MyFragment newInstance(int title, String messa...