how to call methods of a class???

Lets make again the welcome programme with different strategy so that we  could see how to call a method belonging to a class vis its object.

class welcome{

private String greet;

public welcome()

{

greet="Welcome to Java......................!!!!";

}

public void displayGreeting()

{

System.out.println("Greeting :   "+greet);

}

}

public class Demo

{

public static void Main(String[] args)

{

welcome w=new welcome(); /////now constructor will only initialize and will do nothing else

w.displayGreeting();

}

}

*This programe behave Exactly same as last one but biggest difference is that here constructor only initializes and does nothing else until 

w.displayGreeing();

line called no greetings are displayed on screen.