Creating a window - Wintriss Tech

gistfile1.java

// Create the window
JFrame window = new JFrame("Window Title");
    
// Make the program exit when the window is closed
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    
// Add the components to the window
window.add(new JButton());
window.pack();
    
// Put the window in the center of the screen
window.setLocationRelativeTo(null);
    
// Display the window
window.setVisible(true);