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Preferred way of loading resources in Java
I would like to know the best way of loading a resource in Java:
5 Answers
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IntelliJ IDEA with Junit 4.7 “!!! JUnit version 3.8 or later expected:”
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my module is a java library module, so changing JRE to 1.8 java solved the issue.
Or, you can also do it globally via Module Settings > SDK Location > JDK, specifying Oracle's JDK 8 instead of Android SDK's copy.
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What is the difference between Hibernate and Spring Data JPA
..., or any other JPA provider. A very interesting benefit of using Spring or Java EE is that you can control transaction boundaries declaratively using the @Transactional annotation.
Spring JDBC is much more lightweight, and it's intended for native querying, and if you only intend to use JDBC alone,...
Gets byte array from a ByteBuffer in java
...yte[bb.remaining()];
bb.get(b);
which is equivalent as per the ByteBuffer javadocs.
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Why is it bad practice to call System.gc()?
After answering a question about how to force-free objects in Java (the guy was clearing a 1.5GB HashMap) with System.gc() , I was told it's bad practice to call System.gc() manually, but the comments were not entirely convincing. In addition, no one seemed to dare to upvote, nor downvote my ...
Why do you need explicitly have the “self” argument in a Python method?
...e to quote Peters' Zen of Python. "Explicit is better than implicit."
In Java and C++, 'this.' can be deduced, except when you have variable names that make it impossible to deduce. So you sometimes need it and sometimes don't.
Python elects to make things like this explicit rather than based o...
How do I send an HTML email?
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As per the Javadoc, the MimeMessage#setText() sets a default mime type of text/plain, while you need text/html. Rather use MimeMessage#setContent() instead.
message.setContent(someHtmlMessage, "text/html; charset=utf-8");
For additio...
When should a class be Comparable and/or Comparator?
...comparing itself with another object. The class itself must implements the java.lang.Comparable interface in order to be able to compare its instances.
Comparator
A comparator object is capable of comparing two different objects. The class is not comparing its instances, but some other class’s i...
For a boolean field, what is the naming convention for its getter/setter?
...ublic void setActive(boolean active){this.active = active;}
See Also
Java Programming/Java Beans
Code Conventions for the Java Programming Language
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What is the rationale behind having companion objects in Scala?
...ent possible sets of parameters (compare to what Bloch writes in Effective Java about telescoping constructor)
with the ability to to decide which derived class you want to create instead of the abstract (accompanied) one
Example code:
abstract class AbstractClass;
class RealThing(s: String) exte...