Follow these steps to implement the example:

1. Create a class named Task and specify the Runnable interface. Implement the run() method to write the message in the console during 100 seconds:

        public class Task implements Runnable { 
 
          @Override 
          public void run() { 
 
            Date start, end; 
            start = new Date(); 
            do { 
              System.out.printf("%s: tick
",
                                Thread.currentThread().getName()); 
              end = new Date(); 
            } while (end.getTime() - start.getTime() < 100000); 
          } 
        }

2. Implement the Main class with the main() method. Create 10 Task objects to create 10 threads. Start them and wait for their finalization using the join() method:

        public class Main { 
          public static void main(String[] args) { 
 
            Thread[] threads = new Thread[10]; 
 
            for (int i=0; i<10; i++) { 
              Task task=new Task(); 
              threads[i]=new Thread(task); 
              threads[i].start(); 
            } 
 
            for (int i=0; i<10; i++) { 
              try { 
                threads[i].join(); 
              } catch (InterruptedException e) { 
                e.printStackTrace(); 
              } 
            } 
          } 
        }

3. Open a console window and execute the JConsole application. It's included in the bin directory of the JDK-9 installation: