How-To: Create a Transparent JFrame in Java Swing

Here is a sample tutorial, can be a swing hack to optimize your JFrame to give it a better look through transparency.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class TransparentJFrame extends JFrame
{
JButton b1;
public TransparentJFrame()
{
setTitle("Transparent JFrame Demo");
setSize(400,400);
setLayout(new GridBagLayout());
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
//For Java 1.7 or above
setOpacity(0.4f);
//For lower java versions
//com.sun.awt.AWTUtilities.setWindowOpacity(this,0.4f);
b1=new JButton("I am a button!");
add(b1);
}
public static void main(String args[])
{
new TransparentJFrame();
}
}

GridBagLayout: To make the JButton come to center. You can use your own layout depending upon your wish.