Processing a task using a background thread via ExecutorService

ExecutorService Example

package example.pubsub;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class BackgroundThread {

    public static void main(String[] args) {
    	int numThreads = 1;
	    ExecutorService executor = Executors.newFixedThreadPool(numThreads);

	    Runnable backgroundTask = new Runnable() {

    	    @Override
    	    public void run() {
    		System.out.println("Hello World");
    	    }
    
    	};

    	System.out.println("About to submit the background task");
    	executor.execute(backgroundTask);
    	System.out.println("Submitted the background task");
    
    	executor.shutdown();
    	System.out.println("Finished the background task");
    }
}