Basic JFrame(GUI) Window Create in Java.

Main Method:

 
package javaproject;

public class JavaProject

{

    public static void main(String[] a)

    {

        GUI obj = new GUI();///create + call the empty Constructor      

   }

   

}

GUI Method:

 

package javaproject;

 

import javax.swing.JFrame; ///for using JFrame

 

public class GUI extends JFrame

{

    GUI()

    {   

         setTitle("First GUI");///set JFrame Name

         setSize(900,700);///initialize the panel size

         setVisible(true); ///for visible in Computer Screen

    }

}