How to use references in Java?

Required reading on understanding Java's Pass By Value semantics: (links to several other pages)

Completely remove the notion from your head that Java can have anything passed by reference. Let's look at an example, shall we?

public class App
    public static void main( String[] args )
        Foo f1 = new Foo();
        System.out.println(; //Hey guess what, is still 0 because JAVA IS PASS BY VALUE!!!

    static void doSomethingToFoo(Foo f) {
        f = new Foo(); = 99;

    static class Foo {
        int bar = 0;

I am using a JDateChooser as a component in a JForm. I have setup a JButton, which resets all of the fields on this form to blank. I do not have issues with the actionListener, or the method for ...

Using 9-ea+171, Maven 3.5.0 I am compiling a project with this module org.project { } But it fails with a mysterious error: [ERROR] Failed to parse module-info: [ERROR] With qdox:...

I have a problem, that maven is looking for resources inside of Eclipse installation folder. It is saying: This file was not found: file:/C:/eclipse/eclipse/src/main/resources/config/spring/...

In MATLAB I'm using a couple of java routines I've written to interface with a MyQSL database. One routine returns a boolean value result <1x1 java.lang.Boolean> >> result result = true ...