import javax.swing.*;import java.awt.event.*;class I extends JFrame implements
ActionListener{JLabel l=new JLabel();public void actionPerformed(ActionEvent e)
{JFileChooser f=new JFileChooser();if(f.showOpenDialog(this)==0)l.setIcon(new
ImageIcon(f.getSelectedFile().getPath()));};public static void main(String[] a)
{new I();}I(){setDefaultCloseOperation(3);setSize(600,480);JToolBar t=new
JToolBar();JButton b=new JButton("開");b.addActionListener(this);getContentPane
().add(t,"North");t.add(b);getContentPane().add(new JScrollPane(l));show();}}