def run(self):
frame = JFrame('AbsoluteLayout',
defaultCloseOperation=JFrame.EXIT_ON_CLOSE)
# Replace the default Layout Manager
frame.setLayout(None)
# Information defining button title, location & size
data = [['A', 20, 10, 0, 0], ['B', 40, 40, 10, 10],
['C', 80, 20, 20, 20]]
# For each data entry, create & position a button
insets = frame.getInsets()
for item in data:
button = frame.add(JButton(item[0]))
size = button.getPreferredSize()
button.setBounds(insets.left + item[1], insets.top + item[2],
size.width + item[3], size.height + item[4])
# Define the application frame size
frame.setSize(
300 + insets.left + insets.right, # frame width
150 + insets.top + insets.bottom # frame height
)
# Make the frame visible
frame.setVisible(1)
