Syntax error Can we call run() method directly instead of start() in Java

Can we call run() method directly instead of start() in Java

Yes, we can do that. Let us see an example −

Example

 Live Demo

class my_thread extends Thread{
   public void run(){
      try{
         System.out.println ("The thread " + Thread.currentThread().getId() + " is currently running");
      }
      catch (Exception e){
         System.out.println ("The exception has been caught");
      }
   }
}
public class Main{
   public static void main(String[] args){
      int n = 6;
      for (int i=1; i<n; i++){
         my_thread my_object = new my_thread();
         my_object.run();
      }
   }
}

Output

The thread 1 is currently running
The thread 1 is currently running
The thread 1 is currently running
The thread 1 is currently running
The thread 1 is currently running

A class named ‘my_thread’ inherits the main Thread, wherein a ‘run’ function is defined, that gives the id of the current thread that is being run. A try and catch block is defined that catches an exception (if any) and displays the relevant error. In the main function, a ‘for’ loop is run and new object of the ‘my_thread’ class is created. The ‘run’ function is called on this object.

Updated on: 2020-07-14T06:50:05+05:30

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