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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...
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...
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...
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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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...
What is WEB-INF used for in a Java EE web application?
I'm working on a Java EE web application with the following source code structure:
5 Answers
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JavaScript checking for null vs. undefined and difference between == and ===
...ty and JavaScript
Andrea Giammarchi's JavaScript Coercion Demystified
comp.lang.javascript FAQs: JavaScript Type-Conversion
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Best way to build a Plugin system with Java
How would you implement a Plugin-system for your Java application?
8 Answers
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adding multiple entries to a HashMap at once in one statement
..., 3);
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As a piece of warning, please refer to the thread Efficiency of Java “Double Brace Initialization" for the performance implications that it might have.
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