multithreading - Java Thread Hang

Question

I'm creating a Java Slideshow using some 2DTransitions I found on the net. Everything work smoothly, but I come across a problem why trying to execute code after the Slideshow has been rendered. I thought Java threads are used to isolate processes, for instance I have a similar setup with an infinite while loop, and a thread solved that problem. Here it isn't working and I cant figure out why. In the code below I get to the first outputs, but it hangs on thread.run and never prints the last output.

Any ideas why?

Here is the relevant code:

System.out.println("Slideshow init");
        Thread thread = new Thread(new Runnable() {
  //TODO SLIDESHOW PROBLEM RIGHT HERE
            public void run(){
                int i=0;
                while(keepgoing){
                    if(i==images.size()-1){
                        transit(images.get(images.size()-1),images.get(0));
                        i=0;
                    }
                    else
                        transit(images.get(i),images.get(i+1));
                    i++;
                }       
            }
        });
        System.out.println("Thread created");
        thread.run();
        System.out.println("Thread started");`

Answer 1

To start a thread, call thread.start(). Calling thread.run() directly doesn't spawn a new thread.