Program :

Step 1 - Coding

Create a text file c:\sunilos\HelloWithThread.java  and copy below contents.

/*
 * A program with thread implementation
 */

// A thread can be made by extending Thread class

public class HelloWithThread extends Thread {

        //instance variable contains Thread name
    String name = null;

        //Default constructor, initializes name
    public HelloWithThread(String threadName) {
        super(threadName);
        name = threadName;
    }

        //Mandatory run method to perform thread operations
    public void run() {

        for (int i = 0; i < 500; i++) {
            System.out.println(i + " Hello Thread " + name);
        }

    }

}

Step 2 - Creating a test program to test above HelloWithThread class

Create a text file c:\sunilos\TestWithThread.java  and copy below contents.

/*
 * A program to test HelloWithThread
 */

public class TestWithThread {

         //This method is executed in a default 'Main' thread   
    public static void main(String[] args) {

                //Main thread created two child thread t1and t2
        HelloWithThread t1 = new HelloWithThread("Dhoni");

        HelloWithThread t2 = new HelloWithThread("Yuvraj");

                //start threads
        t1.start();
        t2.start();
       
                //main thread execute for loop 500 times. Ideally three 'for' loops will be executed from t1, t2 and main threads
        for (int i = 0; i < 500; i++) {
            System.out.println(i + " This is Main");
        }
    }

}

Step 3 - Deployment

1. Create a folder 'c:\sunilos'. 
2. Create or copy HelloWithThread.java and TestWithThread.java into 'c:\sunilos' folder.
3. Open your command prompt and go to  'c:\sunilos'
   
4. Compile HelloWithThread.java  and  TestWithThread.java with help of
   
• javac HelloWithThread.java command
• javac TestWithThread.java command.  Compiled class file will be created in  the same folder.
  
5. Congratulations!! your Java program are ready to serve.

Step 4 - Testing

1. Make sure you are on Command Prompt under c:\sunilos directory
   
2. Now start your  java program from command prompt with help of 
• java TestWithThread command.

Output

0 Hello Thread Yuvraj
0 This is Main
0 Hello Thread Dhoni
1 Hello Thread Yuvraj
1 This is Main
1 Hello Thread Dhoni
2 Hello Thread Yuvraj
2 This is Main
2 Hello Thread Dhoni
3 This is Main
3 Hello Thread Yuvraj
3 Hello Thread Dhoni
4 Hello Thread Yuvraj
4 This is Main
5 Hello Thread Yuvraj
5 This is Main
4 Hello Thread Dhoni
.....

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