What is the difference between java.lang.Void and void?

Question

In API

\"The Void class is an uninstantiable placeholder class to hold a reference to the Class object representing the Java keyword void.\"

Answer 1

Another example for using Void is SwingWorker

new SwingWorker () {
    @Override
    protected Void doInBackground(){
        ...
    }
    @Override
    protected void process(List chunk){
        ...
    }
    @Override
    public void done(){
        ...
    }
}.execute();