import java.awt.event.ActionEvent; import java.awt.event.ActionListener; /*in main*/ button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.out.println('x'); } });
JButton Button = new JButton(); Button.setSize(300,300); Button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) System.out.println(BlockNumber) } });
button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent actionEvent) { } });