1    package bookExamples.ch13Threads; 
2     
3    public class ThreadExample { 
4        static int numberOfInstances = 0; 
5     
6        class HelloWorldExample implements Runnable { 
7            int id = 0; 
8     
9            HelloWorldExample() { 
10               id = numberOfInstances; 
11               numberOfInstances++; 
12           } 
13    
14           public void run() { 
15               System.out.println("time to sleep! Id=" + id); 
16               try { 
17                   Thread.sleep(10 * 1000); 
18               } catch (InterruptedException e) { 
19               } 
20               System.out.println("hello I am awake! id=" + id); 
21           } 
22       } 
23    
24       HelloWorldExample hwe = new HelloWorldExample(); 
25       Thread t = new Thread(hwe); 
26    
27       ThreadExample() { 
28           t.start(); 
29       } 
30    
31       public static void main(String args[]) { 
32           ThreadExample te[] = new ThreadExample[5000]; 
33           for (int i = 0; i < te.length; i++) { 
34               te[i] = new ThreadExample(); 
35           } 
36       } 
37   } 
38    
39