A procedure for creating a thread by extending the Thread class

• Create a class that inherits the Thread class.
• Overload the run method to perform the desired task.
• Create the thread by instantiating an object from the class.
• Call the start method of the thread object.

A Count Down application that starts two count-down threads

public class CountDownApp
{
    public static void main(String[] args)
    {
        Thread count1 = new CountDownEven();
                                        // instantiate the countdown threads
        Thread count2 = new CountDownOdd();
        count1.start();                       // start the countdown threads
        count2.start();
    }
}

class CountDownEven extends Thread            // this class counts even numbers
{
    public void run()
    {
        for (int i = 10; i > 0; i-= 2)
        {
            System.out.println(this.getName() + " Count " + i);
            Thread.yield();                   // allow the other thread to run
        }
    }
}

class CountDownOdd extends Thread             // this class counts odd numbers
{
    public void run()
    {
        for (int i = 9; i > 0; i-= 2)
        {
            System.out.println(this.getName() + " Count " + i);
            Thread.yield();                   // allow the other thread to run
        }
    }
}

Console output from the Count Down application