Java tutorial
public class Main { public static void main(String[] args) { Thread t = Thread.currentThread(); t.setName("java2s.com thread"); System.out.println("Thread = " + t); int count = Thread.activeCount(); System.out.println("currently active threads = " + count); Thread th[] = new Thread[count]; Thread.enumerate(th); for (int i = 0; i < count; i++) { System.out.println(i + ": " + th[i]); } } }