PRODUCER-CONSUMER

//Producer-Consumer Inter-thread communication

//Table.java 

public class Table
{
	private String obj;
	private boolean empty = true;
	 
	public synchronized void put(String obj)
	{  
	   if(!empty)
	    {   try
		    {  wait();
			}catch(InterruptedException e)
			{ e.printStackTrace(); }
		}
				
		this.obj = obj; 
		empty = false;
		System.out.println(Thread.currentThread().getName()+" has put "+obj);
		notify();
		
	}
	
	public synchronized void get()
	{   
	    if(empty)
	    {   try
		    {   wait();
			}catch(InterruptedException e)
			{ e.printStackTrace(); }
		}
		
		empty = true;
		System.out.println(Thread.currentThread().getName()+" has got "+obj);
		notify();		
	}
	
	public static void main(String[] args)
	{
		Table table = new Table();
		
		Runnable p = new Producer(table);
		Runnable c = new Consumer(table);
		
		Thread pthread = new Thread(p, "Producer");
		Thread cthread = new Thread(c, "Consumer");
		
		pthread.start(); cthread.start();
		
		try{ pthread.join(); cthread.join(); }
		catch(InterruptedException e){ e.printStackTrace(); }
	}
}

/////////////Producer.java

public class Producer implements Runnable
{   private Table table;

	public Producer(Table table)
	{ this.table = table; }
	
	public void run()
	{   java.util.Scanner scanner = new java.util.Scanner(System.in);
		for(int i=1; i <= 5; i++)
		{   System.out.println("Enter text: ");
	        table.put(scanner.next());	
            try{ Thread.sleep(1000); }	
			catch(InterruptedException e){ e.printStackTrace(); }		
		}
	}
}

///////////Consumer.java

public class Consumer implements Runnable
{   
	private Table table;

	public Consumer(Table table)
	{ this.table = table; }
	
	public void run()
	{   for(int i=1; i <= 5; i++){ 
			table.get();
		}
		
	}
}