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What is the difference between getFields and getDeclaredFields in Java reflection
... regardless of their accessibility but only for the current class, not any base classes that the current class might be inheriting from.
To get all the fields up the hierarchy, I have written the following function:
public static Iterable<Field> getFieldsUpTo(@Nonnull Class<?> startCla...
How to use Servlets and Ajax?
...u let JS execute an asynchronous HTTP request and update the HTML DOM tree based on the response data.
Since it's pretty a tedious work to make it to work across all browsers (especially Internet Explorer versus others), there are plenty of JavaScript libraries out which simplifies this in single f...
Command to get time in milliseconds
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date +%s%3N is faster (based in @michael-defort's answer)
– caligari
Feb 21 '14 at 8:08
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await vs Task.Wait - Deadlock?
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Based on what I read from different sources:
An await expression does not block the thread on which it is executing. Instead, it causes the compiler to sign up the rest of the async method as a continuation on the awaited ta...
Are the days of passing const std::string & as a parameter over?
...ormance is important, you'll be wise to consider how you pass these types, based on the details you use in your implementations.
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Default constructor vs. inline field initialization
... constructors with common processing between them, it is primarily opinion-based.
Solution 2 (Using constructor to value all fields and relying on constructors chaining) and solution 4 (Giving a default value in field intializers for fields which constructors don't assign to them a new value and rel...
read complete file without using loop in java
...rset cs)
Source: https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/nio/file/Files.html#readString(java.nio.file.Path)
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Determine the type of an object?
...ution when you want to deal with errors, but not when deciding on behavior based on type.
– Rens van der Heijden
Mar 12 '16 at 12:02
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How do you create a Distinct query in HQL
... That's suboptimal: instead of discarding the repetitions at the database level, it will just pull the data from the database to the memory with repetitions and all, and then discard the repetitions afterwards; depending on how often the data repeats, that can increase the I/O operations quite...
IE9 border-radius and background gradient bleeding
...ed correctly to the border radius in IE9. This is lighter weight than SVG-based proposals but as a downside, is not resolution-independent. Another advantage: works with your current HTML/CSS and does not require wrapping with additional elements.
I grabbed a random 20x20 gradient PNG via a web s...