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Static class initializer in PHP
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// file Foo.php
class Foo
{
static function init() { /* ... */ }
}
Foo::init();
This way, the initialization happens when the class file is included. You can make sure this only happens when necessary (and only once) by usi...
How can I convert byte size into a human-readable format in Java?
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FileUtils.byteCountToDisplaySize(long size) would work if your project can depend on org.apache.commons.io.
JavaDoc for this method
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Data Modeling with Kafka? Topics and Partitions
...t least max(t/p, t/c) partitions.
Currently, in Kafka, each broker opens a file handle of both the index and the data file of every log segment. So, the more partitions, the higher that one needs to configure the open file handle limit in the underlying operating system. E.g. in our production syst...
When to catch java.lang.Error?
... most can be handled. For example a ZipError occurs on reading corrupt zip files.
The most common errors are OutOfMemoryError and NoClassDefFoundError, which are both in most cases runtime problems.
For example:
int length = Integer.parseInt(xyz);
byte[] buffer = new byte[length];
can produce a...
Xml configuration versus Annotation based configuration [closed]
...the main functionality of the code, and hence doesn't belong in the source files.
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Regular expression to match a line that doesn't contain a word
... If you have many patterns that you want to filter out, put them in a file and use grep -vf pattern_file file
– codeforester
Mar 11 '18 at 18:35
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Rails migration for has_and_belongs_to_many join table
...cept that it doesn't work, at least in Rails 3.2. The generated migration file is blank.
– hoffmanc
Jul 7 '13 at 19:23
7
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My docker container has no internet
...c/resolv.conf to the container on construction, I had to manually copy the file into the container.
– glaux
Aug 22 '18 at 11:00
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When is a language considered a scripting language? [closed]
...oriented style in pretty much any language. For example, the Linux Virtual File System Switch and the Linux Driver Model are heavily object-oriented despite written in C, whereas a lot of Java or C# code you see on the web is very procedural and not object-oriented at all. OTOH, I have seen some hea...
Python set to list
...> set=set()
>>> set=set()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'set' object is not callable
The first line rebinds set to an instance of set. The second line is trying to call the instance which of course fails.
Here is a less...