package testawt;

​

import java.awt.*;

import java.awt.event.*;

​

public class Testawt extends Frame

{

    public Testawt()

    {

        Button btn=new Button("Hello World");

        add(btn);       //adding a new Button.

        setSize(400, 500);        //setting size.

        setTitle("StudyTonight");  //setting title.

        setLayout(new FlowLayout());     //set default layout for frame.

        setVisible(true);           //set frame visibilty true.

    }

​

    public static void main (String[] args)

    {

        Testawt ta = new Testawt();   //creating a frame.

    }

}