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Tip of the Day
Language: Java
Expertise: Intermediate
Sep 18, 2017

Finding the Count of All Active Threads

Most developers work with threads at one point or another. It can be important to know which threads are active to accomplish a given task. The following API activeCount on the Thread class returns the count of the active threads in the current run time.

public class ActiveThreadsCount
   public static void main(String args[])
      ActiveThreadsCount activeThreadsCount = new ActiveThreadsCount();

   private void countThreads()
      //This can be invoked at a complex code segment and you cn determine the count
      int threadsCount = java.lang.Thread.activeCount(); 
      System.out.println("Count of active threads: " + threadsCount);
M S Sridhar
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