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How to convert int[] into List in Java?
How do I convert int[] into List<Integer> in Java?
20 Answers
20
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Why would you ever implement finalize()?
I've been reading through a lot of the rookie Java questions on finalize() and find it kind of bewildering that no one has really made it plain that finalize() is an unreliable way to clean up resources. I saw someone comment that they use it to clean up Connections, which is really scary since t...
How to disable breadcrumbs in Eclipse
How can I disable the Java editor breadcrumb in Eclipse?
11 Answers
11
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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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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 ...
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.lang.NoClassDefFoundError: Could not initialize class XXX
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It would be more easily traceable if Java would throw an error CouldNotInitializeStaticPartOfClassError or something. Then we as developer would know where to look.
– Maarten
Nov 14 '18 at 11:12
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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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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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String replacement in java, similar to a velocity template
Is there any String replacement mechanism in Java, where I can pass objects with a text, and it replaces the string as it occurs.
For example, the text is :
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