Day_17_Multithreading.java

package com.TrX;

    class RunnableDemo implements Runnable {
        private Thread t;
        private String threadName;

        RunnableDemo( String name) {
            threadName = name;
            System.out.println("Creating " +  threadName );
        }

        public void run() {
            System.out.println("Running " +  threadName );
            try {
                for(int i = 4; i > 0; i--) {
                    System.out.println("Thread: " + threadName + ", " + i);
                    // Let the thread sleep for a while.
                    Thread.sleep(50);
                }
            } catch (InterruptedException e) {
                System.out.println("Thread " +  threadName + " interrupted.");
            }
            System.out.println("Thread " +  threadName + " exiting.");
        }

        public void start () {
            System.out.println("Starting " +  threadName );
            if (t == null) {
                t = new Thread (this, threadName);
                t.start ();
            }
        }
    }

    public class Day_17_Multithreading {

        public static void main(String args[]) {
            RunnableDemo R1 = new RunnableDemo( "Thread-1");
            R1.start();

            RunnableDemo R2 = new RunnableDemo( "Thread-2");
            R2.start();
        }
    }