Java Program to create Frame by extending Frame class,

import java.awt.*;
/* We have extended the Frame class here,
 * thus our class "SimpleExample" would behave
 * like a Frame
 */
public class SimpleExample extends Frame{
    SimpleExample(){  
        Button b=new Button("Button!!"); 
        
        // setting button position on screen
        b.setBounds(50,50,50,50);  
        
        //adding button into frame 
        add(b); 
        
        //Setting Frame width and height
        setSize(500,300); 
        
        //Setting the title of Frame
        setTitle("This is my First AWT example"); 
        
        //Setting the layout for the Frame
        setLayout(new FlowLayout());
        
        /* By default frame is not visible so 
         * we are setting the visibility to true 
         * to make it visible.
         */
        setVisible(true);  
    }  
    public static void main(String args[]){  
         // Creating the instance of Frame
         SimpleExample fr=new SimpleExample();  
    }
}