import java
 
from java.awt import Graphics
from java.awt import Graphics2D
from javax.swing import JFrame
from javax.swing import JPanel

class HelloFrame(JFrame):
    def __init__(self,title):
        self.setTitle( title )
        self.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
        self.setSize(640, 480)
        
        panel = HelloPanel()
        self.add( panel )

class HelloPanel(JPanel):
    def paintComponent(self,g):
        g.drawString("Hello, Java2D World!", 0, 16)
 
if __name__ == '__main__':
    frame = HelloFrame("Hello, World")
    frame.setVisible(True)