Monitoring Threads

There are two ways to monitor threads, programmatically and using the external tools. We have already seen how the result of a worker calculation could be checked. Let's revisit that code. We will also slightly modify our worker implementation:

class MyRunnable03 implements Runnable {
  private String name;
  private double result;
  public String getName(){ return this.name; }
  public double getResult() { return this.result; }
  public void run() {
    this.name = Thread.currentThread().getName();
    double result = IntStream.rangeClosed(1, 100)
      .flatMap(i -> IntStream.rangeClosed(1, 99999))
      .takeWhile(i -> !Thread.currentThread().isInterrupted())
      .asDoubleStream().map(Math::sqrt).average().getAsDouble();
    if(!Thread.currentThread().isInterrupted()){
      this.result = result;
    }
  }
}

For the worker thread identification, instead of custom ID, we now use the thread name assigned automatically at the time of the execution (that is why we...