Java tutorial
public class Test { public static void main(String[] args) { Test t = new Test(); } public Test() { Runnable runner = new MyRunnable("First"); Thread t = new Thread(runner); t.setPriority(Thread.MIN_PRIORITY); t.start(); runner = new MyRunnable("Second"); t = new Thread(runner); t.setPriority(Thread.MAX_PRIORITY); t.start(); } class MyRunnable implements Runnable { protected String name; public MyRunnable(String tn) { name = tn; } public void run() { while (true) { System.out.println(name); } } } }