/* Example from "Java Certification Exam Guide" by Barry Boone p276
   
   Illustrating why a thread may not execute because there are other
   threads with the same priority and the CPU is switching between
   them.
   
   The output jumps back and forth between the two threads.
   
*/

class SamePriority {
    public static void main(String[] args) {
        MyThread t1 = new MyThread(1);
        MyThread t2 = new MyThread(2);
        
        t1.setPriority(Thread.MAX_PRIORITY);
        t2.setPriority(Thread.MAX_PRIORITY);
        t1.start();
        t2.start();
    }
}   

class MyThread extends Thread {
    int id;
    
    MyThread(int id) {
        this.id = id;    
    }
    
    public void run(){
        for(int i=0; i<100; i++) 
            System.out.println("My id is: " + id);     
    }
}