main()

[Sanjay Izardar]

where the main() is defined.
and what is the use of static keyword in public static void main(String argument[])

[Aditi agarwal]

main is used in that class from which you want your project or file to be started


More over we use the STATIC keyword to call the Main() without creating the object by JVM

[Jesper de Jong]

You define the main() method yourself, in whatever class you like. When you start a Java program, Java will look for a public static void main(String[] args) method - that's where your program starts running, as Aditi already mentioned.

For the meaning of "static", see this tutorial page: Understanding Instance and Class Members.

[Mittal Vishal]

Static methods are known as class methods. They belong to the class in which they are declared, and are not part of any instance of the class.
So to invoke them, object of the class is not required.
That's why main method is declared as static so that JVM can invoke it

[Nico Van Brandt]

Note that both are correct:

public static void main(String[] args){ }
public final static void main(String[] args){ }