Write a Java program to create a thread by extending the Thread class
This Java code creates a simple thread by extending the Thread class and overriding its run method. When the start() method is called on the CreateThread object, it will execute the run method in a separate thread of execution. Here's a step-by-step explanation of the code:
- A class named CreateThread is defined, which extends the Thread class. This means that the CreateThread class is now a subclass of Thread, and it can use the functionalities provided by the Thread class.
- The main method is the entry point of the program. It is the method that gets executed when the program starts.
- Inside the main method:
- An instance of CreateThread named thrd is created.
- The start() method is called on the thrd object. This is how we start the thread execution.
- After calling start(), a new thread is created and executes the run() method concurrently.
- The run() method is overridden from the Thread class, and it will be executed in the new thread. The run() method simply prints "Thread Executed" to the console.
- After calling start(), the System.out.println("Outside the Thread"); statement will be executed immediately after, as it's in the same thread as the main method. The output of this statement will be printed in the original thread.
Source Code
public class CreateThread extends Thread
{
public static void main(String[] args)
{
CreateThread thrd = new CreateThread();
thrd.start();
System.out.println("Outside the Thread");
}
public void run()
{
System.out.println("Thread Executed");
}
}
Output
Outside the Thread
Thread Executed