Swing

java.awt.Container -> java.awt.Component

.setLayout()

java.awt.Window -> java.awt.Container

.pack()

.setVisible()

.show()

java.awt.Frame -> java.awt.Window

javax.swing.JFrame -> java.awt.Frame

.EXIT_ON_CLOSE

.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)

.getContentPane() // java.awt.Container

javax.swing.JOptionPane

.showMessageDialog()

.showConfirmDialog()

.showInputDialog()

.showOptionDialog()

javax.swing.JFileChooser

javax.swing.JColorChooser