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Array Length in Java
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It contains the allocated size, 10. The unassigned indexes will contain the default value which is 0 for int.
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JPA eager fetch does not join
...ence between eager and lazy. In both cases JPA/Hibernate does not automatically join many-to-one relationships.
8 Answers
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Why are private fields private to the type, not the instance?
...this);
}
}
Can the compiler necessarily figure out that other is actually this? Not in all cases. One could argue that this just shouldn't compile then, but that means we have a code path where a private instance member of the correct instance isn't accessible, which I think is even worse.
On...
How to print a date in a regular format?
...do with that?
Well, when you manipulate dates, keep using the date objects all long the way. They got thousand of useful methods and most of the Python API expect dates to be objects.
When you want to display them, just use str(). In Python, the good practice is to explicitly cast everything. So jus...
Identifying the dependency relationship for python packages installed with pip
... freeze I see large number of Python packages that I didn't explicitly install, e.g.
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How to combine two jQuery results
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var $foos = $('.foo');
var $foosAndBars = $foos.add('.bar');
or
var $allFoosAndBars = $allFoos.add($allBars);
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With Git, how do I turn off the “LF will be replaced by CRLF” warning
...input and core.eol input. Or just don't let git change the line endings at all with autocrlf false and get rid of highlighting of crlfs in diffs, etc with core.whitespace cr-at-eol.
Hope this helps
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Is main() really start of a C++ program?
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No, C++ does a lot of things to "set the environment" prior to the call of main; however, main is the official start of the "user specified" part of the C++ program.
Some of the environment setup is not controllable (like the initial code to set up std::cout; however, some of the environment...
Java 32-bit vs 64-bit compatibility
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I accidentally ran our (largeish) application on a 64bit VM rather than a 32bit VM and didn't notice until some external libraries (called by JNI) started failing.
Data serialized on a 32bit platform was read in on the 64bit platform ...
Read a file one line at a time in node.js?
...fDelay: Infinity
});
// Note: we use the crlfDelay option to recognize all instances of CR LF
// ('\r\n') in input.txt as a single line break.
for await (const line of rl) {
// Each line in input.txt will be successively available here as `line`.
console.log(`Line from file: ${line}...