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IntelliJ IDEA 13 uses Java 1.5 despite setting to 1.7
...wing error is produced by IntelliJ 13 when trying to compile some simple Java 7 code which does use the diamond operator:
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Is it possible to make anonymous inner classes in Java static?
In Java, nested classes can be either static or not. If they are static , they do not contain a reference to the pointer of the containing instance (they are also not called inner classes anymore, they are called nested classes).
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Java - sending HTTP parameters via POST method easily
...out. Change the URL and the POST params as appropriate, of course:
import java.io.*;
import java.net.*;
import java.util.*;
class Test {
public static void main(String[] args) throws Exception {
URL url = new URL("http://example.net/new-message.php");
Map<String,Object> p...
Java SafeVarargs annotation, does a standard or best practice exist?
I've recently come across the java @SafeVarargs annotation. Googling for what makes a variadic function in Java unsafe left me rather confused (heap poisoning? erased types?), so I'd like to know a few things:
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OSGi, Java Modularity and Jigsaw
...s a secondary goal it will offer a module system that may be used by other Java libraries and applications.
My position is that something like Jigsaw is probably necessary for the JRE only, but that it will create far more problems than it claims to solve if used by other Java libraries or apps.
T...
Create a List of primitive int?
Is there a way to create a list of primitive int or any primitives in java like following?
10 Answers
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How do I parse command line arguments in Java?
What is a good way of parsing command line arguments in Java?
20 Answers
20
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What are fail-safe & fail-fast Iterators in Java
There are two types of iterators in Java: fail-safe and fail-fast.
4 Answers
4
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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...actually not true. They do certainly not behave differently than any other Java methods (expect of System#exit() of course). When the someCondition in above example is true and you're thus calling forward() after sendRedirect() or sendError() on the same request/response, then the chance is big that...