Java - Thread

Thread in Java

What is Thread?

Thread is a class, an independent path of execution within a program. A thread execute the provided code(Task) in new process, so the thread run concurrently with your program. 
Usually thread is use for connectivity(i.e. Networking, Internet, Bluetooth), timer, i/o operation.
It can be extends with your program, and a run method must be override, and that override method run when thread starts.
Thread class is define in:  java.lang.Thread

When thread object is made then a runnable object must pass inside thread object. I discuss runnable object in next lesson.

Example:

class ThreadTest extends Thread
{
     public void run()
     {
           System.out.println("Thread starts...");
     }
   
     public static void main(String args[])
     {
          ThreadTest t=new ThreadTest();
          t.start();
     }
}