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What is a good use case for static import of methods?
...y one or two members, import them individually.
(https://docs.oracle.com/javase/8/docs/technotes/guides/language/static-import.html)
There are two parts I want to call out specifically:
Use static imports only when you were tempted to "abuse inheritance". In this case, would you have been tempt...
Working with Enums in android
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Where on earth did you find this syntax? Java Enums are very simple, you just specify the values.
public enum Gender {
MALE,
FEMALE
}
If you want them to be more complex, you can add values to them like this.
public enum Gender {
MALE("Male", 0),
F...
Should I instantiate instance variables on declaration or in the constructor?
... of any method, so they cannot be executed as statements are. Instead, the Java compiler generates instance-field initialization code automatically and puts it in the constructor or constructors for the class. The initialization code is inserted into a constructor in the order it appears in the sour...
ArrayList initialization equivalent to array initialization [duplicate]
...u're expecting the outer class to be garbage collected.
I understand that Java 7 will provide additional language constructs to do precisely what you want.
EDIT: recent Java versions provide more usable functions for creating such collections, and are worth investigating over the above (provided a...
How does JavaFX compare to WPF? [closed]
I'm mostly a C# programmer, I stopped writing Java about 10 years ago, but I try to keep up with the technology in Java by reading articles, talking with friends, etc.
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How do you test to see if a double is equal to NaN?
I have a double in Java and I want to check if it is NaN .
What is the best way to do this?
7 Answers
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Mockito: Stubbing Methods That Return Type With Bounded Wild-Cards
... that I made it slightly more generic, because my error wasn't caused by a java.util.List, but the com.google.common.base.Optional. My little helper method therefore allows for any type T and not just List<T>:
public static <T> Answer<T> createAnswer(final T value) {
Answer<...
Does application.yml support environment variables?
...override parameters, but does that also work for env variables? Ex.: nohup java -Xmx1024m -jar -Dspring.profiles.active="whatever". Is there a way to do that with env vars?
– Igor Donin
Feb 15 '19 at 12:06
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SonarQube Exclude a directory
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Try something like this:
sonar.exclusions=src/java/test/**
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Java : How to determine the correct charset encoding of a stream
With reference to the following thread:
Java App : Unable to read iso-8859-1 encoded file correctly
15 Answers
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