Basic of Javascript (2nd step of 10)

Before continue to next step, I ‘d like to comfort not to get you freak or dizzy with my explanation, about HTML that we have known in the last post just don’t think too much because it is nothing to concern with what we need to know obviously.
HTML or DHTML or XML just forget about them.
Because there is a lot instant program which in some easy clicks can create all design you desire. But javasript is must be understood basically and here is the example:

package input;
/**
*
* @author Richie Muamar
*/
import javax.swing.*;
public class Main {
public static void main (String[]args)
{ String Entry_Data = JOptionPane.showInputDialog("masukkan data"); System.out.println("Nama ="+Entry_Data);
}
}

Then Press Run or F6
Will show: