Concurrency - SCJP Sun Certified Programmer for Java Platform SE6 - page 345

5. this.greeting = greeting;
6. }
7.
8. public void run() {
9. for(int i = 1; i <= 10; i++) {
10. System.out.print(greeting);
11. }
12. System.out.println(“End of run”);
13. }
14. }
The run method on line 8 prints a String ten times. Line 12 prints “End of run” just
before the run method completes. Keep in mind that implementing Runnable does not
make the SayHello object a thread. An instance of SayHello needs to be associated with
a new Thread object, and then that Thread object is started by invoking its start method.
Only when the start method is invoked does an additional thread get added to the current
process.
The following CountToTen program starts a new Thread using a SayHello instance.
Study the code and see if you can determine its result:
public class CountToTen {
public static void main(String [] args) {
SayHello hello = new SayHello(“Hi”);
Thread t = new Thread(hello);
t.start();
for(int k = 1; k <= 10; k++) {
System.out.print(k);
}
System.out.println(“End of main”);
}
}
The output of the CountToTen programs looks like
12345678910End of main
HiHiHiHiHiHiHiHiHiHiEnd of run