TestRunner is a simple java program with two threads and executing a common method

TestRunner.java

package com.test;

public class TestRunner {

    // Set the running time here 
    public static long RUNNING_TIME_MIN = 10;   
    
 
    class Runnable1 implements Runnable {

        public void myMethod1() {
            System.out.println("I am " + Thread.currentThread().getName() + " invoking " + " myMethod1");
        }

        @Override
        public void run() {
            long currentTime = System.currentTimeMillis();
            long loopFor = currentTime + RUNNING_TIME_MIN * 60 * 1000;
            while (currentTime < loopFor) {
                commonMethod();
                myMethod1();
            }
        }

    }

    class Runnable2 implements Runnable {

        public void myMethod2() {
            System.out.println("I am " + Thread.currentThread().getName() + " invoking " + " myMethod2");
        }

        @Override
        public void run() {
            long currentTime = System.currentTimeMillis();
            long loopFor = currentTime + RUNNING_TIME_MIN * 60 * 1000;
            while (currentTime < loopFor) {
                commonMethod();
                myMethod2();
            }
        }
    }
    
    /**
     * It creates two thread and starts
     */
    public void startWorking() {
        Thread t1 = new Thread(new Runnable1(), "FirstThread");
        Thread t2 = new Thread(new Runnable2(), "SecondThread");
        t1.start();
        t2.start();
    }
   
    /**
     * Common method invoked by both threads 
     */
    public void commonMethod() {        
        System.out.println("I am " + Thread.currentThread().getName() + " invoking " + " commonMethod");
    }

    
    /**
     * @param args
     */
    public static void main(String[] args) {
        TestRunner tRunner = new TestRunner();
        tRunner.startWorking();
    }

}