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Dynamically load JS inside JS [duplicate]
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<!DOCTYPE html> <html lang="en"><head><meta charset="utf-8" /></head><body> <nav></nav> <template class="markdown"> == hello == </template> <te...
Read error response body in Java
In Java, this code throws an exception when the HTTP result is 404 range:
8 Answers
8
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How to convert lazy sequence to non-lazy in Clojure
...sults to a file, and even after calling doall, the file contained "clojure.lang.LazySeq@address" instead of the contents of the sequence. Calling vec on value map returned got me what I needed to spit out to the file.
– Jesse Rosalia
Nov 23 '15 at 23:17
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How do I use a PriorityQueue?
...d.
Here's an example of a priority queue sorting by string length:
// Test.java
import java.util.Comparator;
import java.util.PriorityQueue;
public class Test {
public static void main(String[] args) {
Comparator<String> comparator = new StringLengthComparator();
PriorityQ...
Java regex capturing groups indexes
...r capturing groups in different branches of alternation.
Group name
From Java 7, you can define a named capturing group (?<name>pattern), and you can access the content matched with Matcher.group(String name). The regex is longer, but the code is more meaningful, since it indicates what you ...
Java generics - why is “extends T” allowed but not “implements T”?
I wonder if there is a special reason in Java for using always " extends " rather than " implements " for defining bounds of typeparameters.
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Is it bad practice to make a setter return “this”?
Is it a good or bad idea to make setters in java return "this"?
27 Answers
27
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Is there a Java standard “both null or equal” static method?
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With Java 7 you can now directly do a null safe equals:
Objects.equals(x, y)
(The Jakarta Commons library ObjectUtils.equals() has become obsolete with Java 7)
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What does Maven do, in theory and in practice? When is it worth to use it? [closed]
I am about to start a Java project just for practice. I've read about Maven, but I don't actually understand when it is meant to be used.
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How to gracefully handle the SIGKILL signal in Java
...hutdown hooks.
Registers a new virtual-machine shutdown hook.
The Java virtual machine shuts down in response to two kinds of events:
The program exits normally, when the last non-daemon thread exits or when the exit (equivalently, System.exit) method is invoked, or
The virtual ma...