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Why shouldn't Java enum literals be able to have generic type parameters?
Java enums are great. So are generics. Of course we all know the limitations of the latter because of type erasure. But there is one thing I don't understand, Why can't I create an enum like this:
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Initializing multiple variables to the same value in Java
... thing (especially the multiple assignments) would be frowned upon by most Java developers, who would consider it the opposite of "visually simple".
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How to disassemble one single function using objdump?
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Bash completion for ./dasm
Complete symbol names to this solution (D lang version):
By typing dasm test and then pressing TabTab, you will get a list of all functions.
By typing dasm test m and then pressing TabTab all functions starting with m will be shown, or in case only one function e...
Is it wrong to use Deprecated methods or classes in Java?
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1. Is it wrong to use Deprecated methods or classes in Java?
From the definition of deprecated:
A program element annotated @Deprecated is one that programmers are discouraged from using, typically because it is dangerous, or because a better alternative exists.
The metho...
Regular expression to match URLs in Java
...RLs. I tested successfully within RegexBuddy. However, when I copied it as Java String flavor and pasted it into Java code, it does not work. The following class prints false :
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Do subclasses inherit private fields?
...fferent than the notion of inheritance for a class. As is the case in the java world, where there is a question of semantics the arbiter is the Java Language Specification (currently 3rd edition).
As the JLS states (https://docs.oracle.com/javase/specs/jls/se8/html/jls-8.html#jls-8.2):
Membe...
How to avoid java.util.ConcurrentModificationException when iterating through and removing elements
...er it I have to remove elements at the same time. Obviously this throws a java.util.ConcurrentModificationException .
20 A...
How do I get the user agent with Flask?
...windows, linux, macos, etc.)
browser (chrome, firefox, msie, etc.)
version
language
string (== request.headers.get('User-Agent'))
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Get ID of last inserted document in a mongoDB w/ Java driver
...D (ObjectID) of the last inserted document of a mongoDB instance using the Java driver?
8 Answers
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How to import a class from default package
...h the default package. I have one class in default package - Calculations.java and I want to make the use of that class in any of the package (for instance in com.company.calc ). When I try to make the use of the class which is in the default package, it's giving me a compiler error. It's not abl...